IGCSECambridge International0653

Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries for 14 series, March 2022 to June 2026, for the qualification as a whole and for each paper. Each table shows the lowest mark that got each grade, copied from Cambridge International's own document, which is linked underneath.

Cambridge International IGCSE Combined Science past papers and mark schemes Specification All Cambridge grade boundaries Turn a mark into a grade Everything for Combined Science

June 2026 Cambridge International IGCSE Combined Science grade boundaries

Newest

Cambridge International IGCSE Combined Science grade boundaries, June 2026: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Components 11, 31, 51	200	not available	not available	not available	9145.5%	7839%	6633%	5326.5%	4020%
Components 11, 31, 61	200	not available	not available	not available	9145.5%	7839%	6633%	5326.5%	4020%
Components 12, 32, 52	200	not available	not available	not available	9346.5%	8040%	6834%	5427%	4020%
Components 12, 32, 62	200	not available	not available	not available	9346.5%	8040%	6834%	5427%	4020%
Components 13, 33, 53	200	not available	not available	not available	9346.5%	8040%	6834%	5427%	4020%
Components 13, 33, 63	200	not available	not available	not available	9145.5%	7839%	6633%	5326.5%	4020%
Components 21, 41, 51	200	14673%	12462%	10251%	8040%	6934.5%	5929.5%	4924.5%	3919.5%
Components 21, 41, 61	200	14673%	12462%	10251%	8040%	6934.5%	5929.5%	4924.5%	3919.5%
Components 22, 42, 52	200	14572.5%	12261%	9949.5%	7638%	6532.5%	5527.5%	4522.5%	3517.5%
Components 22, 42, 62	200	14572.5%	12261%	9949.5%	7638%	6532.5%	5527.5%	4522.5%	3517.5%
Components 23, 43, 53	200	14673%	12361.5%	10050%	7839%	6834%	5829%	4723.5%	3618%
Components 23, 43, 63	200	14572.5%	12261%	9949.5%	7638%	6633%	5628%	4623%	3618%
Component 50	90	8088.9%	7178.9%	6268.9%	5358.9%	4550%	3842.2%	3134.4%	2426.7%

Cambridge International IGCSE Combined Science paper boundaries, June 2026
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 120653/12	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 130653/13	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 210653/21	40	not available	2665%	2357.5%	2050%	1845%	1640%	1435%	1230%
Component 220653/22	40	not available	2665%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 230653/23	40	not available	2665%	2255%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 310653/31	80	not available	not available	not available	3341.3%	2733.8%	2227.5%	1620%	1012.5%
Component 320653/32	80	not available	not available	not available	3543.8%	2936.3%	2430%	1822.5%	1215%
Component 330653/33	80	not available	not available	not available	3543.8%	2936.3%	2430%	1822.5%	1215%
Component 410653/41	80	not available	4657.5%	3645%	2430%	2025%	1721.3%	1316.3%	911.3%
Component 420653/42	80	not available	4455%	3240%	2126.3%	1721.3%	1417.5%	1113.8%	810%
Component 430653/43	80	not available	4556.3%	3442.5%	2328.8%	2025%	1620%	1215%	810%
Component 500653/50	90	not available	7178.9%	6268.9%	5358.9%	4550%	3842.2%	3134.4%	2426.7%
Component 510653/51	40	not available	2767.5%	2357.5%	2050%	1742.5%	1435%	1230%	1025%
Component 520653/52	40	not available	2870%	2460%	2152.5%	1845%	1537.5%	1230%	922.5%
Component 530653/53	40	not available	2870%	2460%	2152.5%	1845%	1537.5%	1230%	922.5%
Component 610653/61	40	not available	2767.5%	2357.5%	2050%	1742.5%	1435%	1230%	1025%
Component 620653/62	40	not available	2870%	2460%	2152.5%	1845%	1537.5%	1230%	922.5%
Component 630653/63	40	not available	2767.5%	2357.5%	1947.5%	1640%	1332.5%	1127.5%	922.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 June 2026 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

March 2026 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, March 2026: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Components 12, 32, 52	200	not available	not available	not available	9346.5%	7939.5%	6633%	5226%	3819%
Components 12, 32, 62	200	not available	not available	not available	9346.5%	7939.5%	6633%	5226%	3819%
Components 22, 42, 52	200	14773.5%	12261%	9748.5%	7236%	6231%	5226%	4321.5%	3417%
Components 22, 42, 62	200	14773.5%	12261%	9748.5%	7236%	6231%	5226%	4321.5%	3417%

Cambridge International IGCSE Combined Science paper boundaries, March 2026
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 120653/12	40	not available	not available	not available	1947.5%	1742.5%	1640%	1435%	1230%
Component 220653/22	40	not available	2767.5%	2255%	1845%	1640%	1435%	1332.5%	1230%
Component 320653/32	80	not available	not available	not available	3645%	3037.5%	2328.8%	1721.3%	1113.8%
Component 420653/42	80	not available	4556.3%	3442.5%	2126.3%	1822.5%	1417.5%	1113.8%	810%
Component 520653/52	40	not available	2562.5%	2255%	1947.5%	1640%	1332.5%	1025%	717.5%
Component 620653/62	40	not available	2562.5%	2255%	1947.5%	1640%	1332.5%	1025%	717.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 March 2026 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

November 2025 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, November 2025: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	15175.5%	12763.5%	10351.5%	8040%	7035%	6030%	5025%	4020%
Option BY (components 22, 42, 52)	200	15175.5%	12562.5%	9949.5%	7437%	6432%	5427%	4522.5%	3618%
Option CX (components 21, 41, 61)	200	15276%	12864%	10452%	8040%	7035%	6030%	5025%	4020%
Option CY (components 22, 42, 62)	200	15075%	12562.5%	10050%	7537.5%	6432%	5427%	4522.5%	3618%
Option CZ (components 23, 43, 63)	200	15075%	12663%	10251%	7839%	6834%	5829%	4824%	3819%
Option FX (components 11, 31, 51)	200	not available	not available	not available	9346.5%	8140.5%	7035%	5728.5%	4422%
Option FY (components 12, 32, 52)	200	not available	not available	not available	9849%	8643%	7537.5%	6331.5%	5125.5%
Option GX (components 11, 31, 61)	200	not available	not available	not available	9346.5%	8140.5%	7035%	5728.5%	4422%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9949.5%	8743.5%	7537.5%	6331.5%	5125.5%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	10150.5%	8944.5%	7738.5%	6532.5%	5326.5%

Cambridge International IGCSE Combined Science paper boundaries, November 2025
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	2152.5%	1845%	1640%	1332.5%	1127.5%
Component 120653/12	40	not available	not available	not available	2050%	1845%	1742.5%	1537.5%	1332.5%
Component 130653/13	40	not available	not available	not available	2050%	1845%	1742.5%	1537.5%	1332.5%
Component 210653/21	40	not available	3075%	2665%	2152.5%	1947.5%	1742.5%	1537.5%	1332.5%
Component 220653/22	40	not available	3075%	2562.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 230653/23	40	not available	2767.5%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 310653/31	80	not available	not available	not available	3543.8%	3138.8%	2632.5%	2227.5%	1822.5%
Component 320653/32	80	not available	not available	not available	4050%	3543.8%	2936.3%	2430%	2025%
Component 330653/33	80	not available	not available	not available	4050%	3543.8%	2936.3%	2430%	2025%
Component 410653/41	80	not available	4556.3%	3543.8%	2430%	2025%	1721.3%	1417.5%	1113.8%
Component 420653/42	80	not available	4353.8%	3341.3%	2227.5%	1822.5%	1518.8%	1215%	1012.5%
Component 430653/43	80	not available	4657.5%	3543.8%	2328.8%	2025%	1620%	1316.3%	1012.5%
Component 510653/51	40	not available	2665%	2255%	1845%	1640%	1332.5%	1025%	717.5%
Component 520653/52	40	not available	2665%	2255%	1845%	1640%	1332.5%	1025%	717.5%
Component 610653/61	40	not available	2767.5%	2255%	1845%	1640%	1332.5%	1025%	717.5%
Component 620653/62	40	not available	2665%	2255%	1947.5%	1640%	1332.5%	1025%	717.5%
Component 630653/63	40	not available	2870%	2460%	2152.5%	1845%	1537.5%	1230%	922.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 November 2025 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

June 2025 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, June 2025: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	14472%	12160.5%	9849%	7638%	6532.5%	5527.5%	4522.5%	3517.5%
Option BY (components 22, 42, 52)	200	14673%	12261%	9849%	7537.5%	6432%	5427%	4422%	3417%
Option CX (components 21, 41, 61)	200	14472%	12160.5%	9849%	7638%	6532.5%	5527.5%	4522.5%	3517.5%
Option CY (components 22, 42, 62)	200	14673%	12261%	9849%	7537.5%	6432%	5427%	4422%	3417%
Option CZ (components 23, 43, 63)	200	14572.5%	12160.5%	9748.5%	7437%	6331.5%	5326.5%	4422%	3517.5%
Option FX (components 11, 31, 51)	200	not available	not available	not available	8743.5%	7336.5%	6030%	4824%	3618%
Option FY (components 12, 32, 52)	200	not available	not available	not available	8743.5%	7336.5%	6030%	4723.5%	3417%
Option GX (components 11, 31, 61)	200	not available	not available	not available	8743.5%	7336.5%	6030%	4824%	3618%
Option GY (components 12, 32, 62)	200	not available	not available	not available	8743.5%	7336.5%	6030%	4723.5%	3417%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	8643%	7236%	5929.5%	4723.5%	3517.5%

Cambridge International IGCSE Combined Science paper boundaries, June 2025
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 120653/12	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 130653/13	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 210653/21	40	not available	2665%	2255%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	2767.5%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 230653/23	40	not available	2767.5%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 310653/31	80	not available	not available	not available	3138.8%	2531.3%	1923.8%	1316.3%	810%
Component 320653/32	80	not available	not available	not available	3138.8%	2531.3%	1923.8%	1316.3%	810%
Component 330653/33	80	not available	not available	not available	3138.8%	2531.3%	1923.8%	1316.3%	810%
Component 410653/41	80	not available	4353.8%	3341.3%	2227.5%	1822.5%	1518.8%	1113.8%	78.8%
Component 420653/42	80	not available	4353.8%	3240%	2126.3%	1721.3%	1417.5%	1113.8%	810%
Component 430653/43	80	not available	4353.8%	3240%	2126.3%	1721.3%	1417.5%	1113.8%	810%
Component 510653/51	40	not available	2870%	2460%	2050%	1742.5%	1435%	1230%	1025%
Component 520653/52	40	not available	2870%	2460%	2050%	1742.5%	1435%	1127.5%	820%
Component 610653/61	40	not available	2870%	2460%	2050%	1742.5%	1435%	1230%	1025%
Component 620653/62	40	not available	2870%	2460%	2050%	1742.5%	1435%	1127.5%	820%
Component 630653/63	40	not available	2767.5%	2357.5%	1947.5%	1640%	1332.5%	1127.5%	922.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 June 2025 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

March 2025 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, March 2025: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BY (components 22, 42, 52)	200	15477%	12964.5%	10452%	8040%	6834%	5628%	4422%	3216%
Option CY (components 22, 42, 62)	200	15477%	12964.5%	10452%	8040%	6834%	5628%	4422%	3216%
Option FY (components 12, 32, 52)	200	not available	not available	not available	9849%	8341.5%	6934.5%	5326.5%	3718.5%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9849%	8341.5%	6934.5%	5326.5%	3718.5%

Cambridge International IGCSE Combined Science paper boundaries, March 2025
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 120653/12	40	not available	not available	not available	1947.5%	1742.5%	1640%	1435%	1230%
Component 220653/22	40	not available	2972.5%	2460%	2050%	1845%	1537.5%	1332.5%	1127.5%
Component 320653/32	80	not available	not available	not available	3847.5%	3240%	2430%	1721.3%	1012.5%
Component 420653/42	80	not available	4556.3%	3442.5%	2227.5%	1923.8%	1518.8%	1113.8%	78.8%
Component 520653/52	40	not available	2972.5%	2562.5%	2255%	1845%	1537.5%	1127.5%	717.5%
Component 620653/62	40	not available	2972.5%	2562.5%	2255%	1845%	1537.5%	1127.5%	717.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 March 2025 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

November 2024 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, November 2024: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	15276%	12864%	10452%	8040%	6834%	5728.5%	4723.5%	3718.5%
Option BY (components 22, 42, 52)	200	15577.5%	13165.5%	10753.5%	8341.5%	7135.5%	6030%	5025%	4020%
Option CX (components 21, 41, 61)	200	15175.5%	12763.5%	10351.5%	7939.5%	6834%	5728.5%	4723.5%	3718.5%
Option CY (components 22, 42, 62)	200	15477%	13065%	10653%	8241%	7135.5%	6030%	5025%	4020%
Option CZ (components 23, 43, 63)	200	15175.5%	12763.5%	10351.5%	7939.5%	6834%	5728.5%	4723.5%	3718.5%
Option FX (components 11, 31, 51)	200	not available	not available	not available	9849%	8442%	7035%	5527.5%	4020%
Option FY (components 12, 32, 52)	200	not available	not available	not available	9447%	8040%	6733.5%	5427%	4120.5%
Option GX (components 11, 31, 61)	200	not available	not available	not available	9748.5%	8341.5%	7035%	5527.5%	4020%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9346.5%	8040%	6733.5%	5427%	4120.5%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	9346.5%	8040%	6733.5%	5427%	4120.5%
Option P1 (component 50)	90	7886.7%	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%

Cambridge International IGCSE Combined Science paper boundaries, November 2024
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	2255%	2050%	1742.5%	1435%	1127.5%
Component 120653/12	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 130653/13	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 210653/21	40	not available	2870%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	3075%	2665%	2152.5%	1947.5%	1742.5%	1537.5%	1332.5%
Component 230653/23	40	not available	2767.5%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 310653/31	80	not available	not available	not available	3645%	3037.5%	2531.3%	1923.8%	1316.3%
Component 320653/32	80	not available	not available	not available	3543.8%	3037.5%	2430%	1822.5%	1316.3%
Component 330653/33	80	not available	not available	not available	3543.8%	3037.5%	2430%	1822.5%	1316.3%
Component 410653/41	80	not available	4758.8%	3746.3%	2531.3%	2126.3%	1721.3%	1417.5%	1113.8%
Component 420653/42	80	not available	4758.8%	3645%	2531.3%	2126.3%	1721.3%	1417.5%	1113.8%
Component 430653/43	80	not available	4860%	3746.3%	2531.3%	2126.3%	1721.3%	1417.5%	1113.8%
Component 500653/50	90	not available	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%
Component 510653/51	40	not available	2767.5%	2357.5%	2050%	1640%	1332.5%	1025%	717.5%
Component 520653/52	40	not available	2767.5%	2357.5%	2050%	1640%	1332.5%	1025%	717.5%
Component 610653/61	40	not available	2665%	2255%	1947.5%	1640%	1332.5%	1025%	717.5%
Component 620653/62	40	not available	2665%	2255%	1947.5%	1640%	1332.5%	1025%	717.5%
Component 630653/63	40	not available	2665%	2255%	1947.5%	1640%	1332.5%	1025%	717.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 November 2024 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

June 2024 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, June 2024: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	14974.5%	12562.5%	10150.5%	7738.5%	6733.5%	5829%	4824%	3819%
Option BY (components 22, 42, 52)	200	14874%	12462%	10050%	7738.5%	6633%	5628%	4723.5%	3819%
Option CX (components 21, 41, 61)	200	15075%	12663%	10251%	7839%	6834%	5829%	4824%	3819%
Option CY (components 22, 42, 62)	200	14974.5%	12562.5%	10150.5%	7839%	6733.5%	5628%	4723.5%	3819%
Option CZ (components 23, 43, 63)	200	15075%	12663%	10251%	7939.5%	6834%	5728.5%	4723.5%	3718.5%
Option FX (components 11, 31, 51)	200	not available	not available	not available	9346.5%	7939.5%	6532.5%	5125.5%	3718.5%
Option FY (components 12, 32, 52)	200	not available	not available	not available	9045%	7638%	6331.5%	5125.5%	3919.5%
Option GX (components 11, 31, 61)	200	not available	not available	not available	9447%	7939.5%	6532.5%	5125.5%	3718.5%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9145.5%	7738.5%	6331.5%	5125.5%	3919.5%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	9145.5%	7738.5%	6331.5%	5125.5%	3919.5%
Option P1 (component 50)	90	7886.7%	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%

Cambridge International IGCSE Combined Science paper boundaries, June 2024
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	2152.5%	1947.5%	1640%	1332.5%	1127.5%
Component 120653/12	40	not available	not available	not available	2152.5%	1845%	1640%	1435%	1230%
Component 130653/13	40	not available	not available	not available	2152.5%	1845%	1640%	1435%	1230%
Component 210653/21	40	not available	2665%	2255%	1845%	1742.5%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	2767.5%	2357.5%	2050%	1845%	1640%	1435%	1230%
Component 230653/23	40	not available	2767.5%	2357.5%	2050%	1845%	1640%	1435%	1230%
Component 310653/31	80	not available	not available	not available	3341.3%	2733.8%	2126.3%	1518.8%	911.3%
Component 320653/32	80	not available	not available	not available	3240%	2733.8%	2126.3%	1518.8%	1012.5%
Component 330653/33	80	not available	not available	not available	3240%	2733.8%	2126.3%	1518.8%	1012.5%
Component 410653/41	80	not available	4758.8%	3645%	2430%	2025%	1620%	1215%	810%
Component 420653/42	80	not available	4657.5%	3543.8%	2328.8%	1923.8%	1518.8%	1215%	911.3%
Component 430653/43	80	not available	4758.8%	3645%	2430%	2025%	1620%	1215%	810%
Component 500653/50	90	not available	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%
Component 510653/51	40	not available	2767.5%	2357.5%	2050%	1742.5%	1537.5%	1332.5%	1127.5%
Component 520653/52	40	not available	2665%	2255%	1845%	1537.5%	1332.5%	1127.5%	922.5%
Component 610653/61	40	not available	2870%	2460%	2152.5%	1845%	1537.5%	1332.5%	1127.5%
Component 620653/62	40	not available	2767.5%	2357.5%	1947.5%	1640%	1332.5%	1127.5%	922.5%
Component 630653/63	40	not available	2767.5%	2357.5%	1947.5%	1640%	1332.5%	1127.5%	922.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 June 2024 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

June 2024 past papers and mark schemes

March 2024 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, March 2024: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BY (components 22, 42, 52)	200	15678%	13165.5%	10653%	8241%	7035%	5829%	4623%	3417%
Option CY (components 22, 42, 62)	200	15678%	13165.5%	10653%	8241%	7035%	5829%	4623%	3417%
Option GY (components 12, 32, 62)	200	not available	not available	not available	10251%	8743.5%	7236%	5527.5%	3819%

Cambridge International IGCSE Combined Science paper boundaries, March 2024
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 120653/12	40	not available	not available	not available	2255%	2050%	1845%	1640%	1435%
Component 220653/22	40	not available	2972.5%	2460%	2050%	1742.5%	1537.5%	1332.5%	1127.5%
Component 320653/32	80	not available	not available	not available	3847.5%	3138.8%	2430%	1620%	810%
Component 420653/42	80	not available	4860%	3746.3%	2531.3%	2126.3%	1620%	1215%	810%
Component 520653/52	40	not available	2767.5%	2460%	2152.5%	1845%	1537.5%	1127.5%	717.5%
Component 620653/62	40	not available	2767.5%	2460%	2152.5%	1845%	1537.5%	1127.5%	717.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 March 2024 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

November 2023 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, November 2023: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	14874%	12462%	10050%	7738.5%	6633%	5628%	4623%	3618%
Option BY (components 22, 42, 52)	200	15175.5%	12663%	10150.5%	7738.5%	6733.5%	5728.5%	4824%	3919.5%
Option CX (components 21, 41, 61)	200	14874%	12462%	10050%	7738.5%	6633%	5628%	4623%	3618%
Option CY (components 22, 42, 62)	200	15175.5%	12663%	10150.5%	7738.5%	6733.5%	5728.5%	4824%	3919.5%
Option CZ (components 23, 43, 63)	200	15376.5%	12864%	10351.5%	7839%	6834%	5929.5%	5025%	4120.5%
Option FX (components 11, 31, 51)	200	not available	not available	not available	9145.5%	7839%	6532.5%	5125.5%	3718.5%
Option GX (components 11, 31, 61)	200	not available	not available	not available	9145.5%	7839%	6532.5%	5125.5%	3718.5%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9246%	7839%	6432%	5025%	3618%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	9246%	7839%	6432%	5025%	3618%
Option P1 (component 50)	90	7886.7%	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%

Cambridge International IGCSE Combined Science paper boundaries, November 2023
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 120653/12	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 130653/13	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 210653/21	40	not available	2767.5%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	2972.5%	2460%	2050%	1845%	1640%	1435%	1230%
Component 230653/23	40	not available	2870%	2460%	2050%	1845%	1640%	1435%	1230%
Component 310653/31	80	not available	not available	not available	3442.5%	2936.3%	2328.8%	1721.3%	1113.8%
Component 320653/32	80	not available	not available	not available	3543.8%	2936.3%	2227.5%	1620%	1012.5%
Component 330653/33	80	not available	not available	not available	3543.8%	2936.3%	2227.5%	1620%	1012.5%
Component 410653/41	80	not available	4657.5%	3543.8%	2430%	2025%	1721.3%	1417.5%	1113.8%
Component 420653/42	80	not available	4556.3%	3442.5%	2328.8%	2025%	1721.3%	1417.5%	1215%
Component 430653/43	80	not available	4860%	3645%	2430%	2126.3%	1822.5%	1620%	1417.5%
Component 500653/50	90	not available	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%
Component 510653/51	40	not available	2665%	2255%	1845%	1537.5%	1230%	922.5%	615%
Component 520653/52	40	not available	2665%	2255%	1845%	1537.5%	1230%	922.5%	615%
Component 610653/61	40	not available	2665%	2255%	1845%	1537.5%	1230%	922.5%	615%
Component 620653/62	40	not available	2665%	2255%	1845%	1537.5%	1230%	922.5%	615%
Component 630653/63	40	not available	2665%	2255%	1845%	1537.5%	1230%	922.5%	615%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 November 2023 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

June 2023 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, June 2023: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	14472%	12060%	9648%	7336.5%	6432%	5628%	4623%	3618%
Option BY (components 22, 42, 52)	200	14773.5%	12361.5%	9949.5%	7537.5%	6432%	5427%	4522.5%	3618%
Option CX (components 21, 41, 61)	200	14572.5%	12160.5%	9748.5%	7437%	6532.5%	5628%	4623%	3618%
Option CY (components 22, 42, 62)	200	14974.5%	12462%	9949.5%	7537.5%	6432%	5427%	4522.5%	3618%
Option CZ (components 23, 43, 63)	200	14472%	12060%	9648%	7336.5%	6331.5%	5427%	4522.5%	3618%
Option FX (components 11, 31, 51)	200	not available	not available	not available	8743.5%	7537.5%	6432%	5125.5%	3819%
Option FY (components 12, 32, 52)	200	not available	not available	not available	8944.5%	7638%	6331.5%	5226%	4120.5%
Option GX (components 11, 31, 61)	200	not available	not available	not available	8844%	7638%	6432%	5125.5%	3819%
Option GY (components 12, 32, 62)	200	not available	not available	not available	8944.5%	7638%	6331.5%	5226%	4120.5%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	8743.5%	7437%	6231%	5025%	3819%
Option P1 (component 50)	90	7886.7%	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%

Cambridge International IGCSE Combined Science paper boundaries, June 2023
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 120653/12	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 130653/13	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 210653/21	40	not available	2665%	2255%	1845%	1640%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	2767.5%	2357.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 230653/23	40	not available	2665%	2255%	1845%	1640%	1537.5%	1332.5%	1127.5%
Component 310653/31	80	not available	not available	not available	3138.8%	2632.5%	2025%	1518.8%	1012.5%
Component 320653/32	80	not available	not available	not available	3138.8%	2632.5%	2025%	1518.8%	1012.5%
Component 330653/33	80	not available	not available	not available	3138.8%	2531.3%	2025%	1518.8%	1012.5%
Component 410653/41	80	not available	4353.8%	3240%	2126.3%	1822.5%	1417.5%	1113.8%	810%
Component 420653/42	80	not available	4455%	3240%	2126.3%	1721.3%	1417.5%	1113.8%	810%
Component 430653/43	80	not available	4353.8%	3240%	2126.3%	1822.5%	1417.5%	1113.8%	810%
Component 500653/50	90	not available	6875.6%	5864.4%	4853.3%	3943.3%	3134.4%	2224.4%	1314.4%
Component 510653/51	40	not available	2767.5%	2357.5%	2050%	1845%	1640%	1332.5%	1025%
Component 520653/52	40	not available	2767.5%	2460%	2050%	1742.5%	1435%	1230%	1025%
Component 610653/61	40	not available	2870%	2460%	2152.5%	1845%	1640%	1332.5%	1025%
Component 620653/62	40	not available	2870%	2460%	2050%	1742.5%	1435%	1230%	1025%
Component 630653/63	40	not available	2767.5%	2357.5%	2050%	1742.5%	1435%	1230%	1025%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 June 2023 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

March 2023 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, March 2023: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BY (components 22, 42, 52)	200	14773.5%	12462%	10150.5%	7939.5%	6733.5%	5527.5%	4321.5%	3115.5%
Option CY (components 22, 42, 62)	200	14773.5%	12462%	10150.5%	7939.5%	6733.5%	5527.5%	4321.5%	3115.5%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9748.5%	8241%	6733.5%	5226%	3718.5%

Cambridge International IGCSE Combined Science paper boundaries, March 2023
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 120653/12	40	not available	not available	not available	2152.5%	1845%	1640%	1435%	1230%
Component 220653/22	40	not available	2767.5%	2357.5%	2050%	1742.5%	1537.5%	1332.5%	1127.5%
Component 320653/32	80	not available	not available	not available	3645%	3037.5%	2328.8%	1721.3%	1113.8%
Component 420653/42	80	not available	4556.3%	3543.8%	2328.8%	2025%	1518.8%	1113.8%	78.8%
Component 520653/52	40	not available	2767.5%	2357.5%	2050%	1742.5%	1435%	1025%	615%
Component 620653/62	40	not available	2767.5%	2357.5%	2050%	1742.5%	1435%	1025%	615%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 March 2023 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

November 2022 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, November 2022: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	13869%	11658%	9447%	7336.5%	6331.5%	5427%	4522.5%	3618%
Option BY (components 22, 42, 52)	200	13869%	11658%	9447%	7336.5%	6432%	5527.5%	4723.5%	3919.5%
Option CX (components 21, 41, 61)	200	13869%	11658%	9447%	7336.5%	6331.5%	5427%	4522.5%	3618%
Option CY (components 22, 42, 62)	200	13869%	11658%	9447%	7336.5%	6432%	5527.5%	4723.5%	3919.5%
Option CZ (components 23, 43, 63)	200	13869%	11658%	9447%	7336.5%	6331.5%	5427%	4522.5%	3618%
Option FX (components 11, 31, 51)	200	not available	not available	not available	8844%	7437%	6130.5%	4824%	3517.5%
Option FY (components 12, 32, 52)	200	not available	not available	not available	8844%	7437%	6130.5%	4824%	3517.5%
Option GX (components 11, 31, 61)	200	not available	not available	not available	8844%	7437%	6130.5%	4824%	3517.5%
Option GY (components 12, 32, 62)	200	not available	not available	not available	8844%	7437%	6130.5%	4824%	3517.5%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	8844%	7437%	6130.5%	4824%	3517.5%

Cambridge International IGCSE Combined Science paper boundaries, November 2022
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 120653/12	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 130653/13	40	not available	not available	not available	2050%	1845%	1640%	1435%	1230%
Component 210653/21	40	not available	2665%	2255%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	2665%	2357.5%	2050%	1845%	1640%	1435%	1332.5%
Component 230653/23	40	not available	2665%	2255%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 310653/31	80	not available	not available	not available	3341.3%	2733.8%	2126.3%	1518.8%	1012.5%
Component 320653/32	80	not available	not available	not available	3341.3%	2733.8%	2126.3%	1518.8%	1012.5%
Component 330653/33	80	not available	not available	not available	3341.3%	2733.8%	2126.3%	1518.8%	1012.5%
Component 410653/41	80	not available	4151.3%	3240%	2227.5%	1923.8%	1620%	1417.5%	1215%
Component 420653/42	80	not available	4151.3%	3138.8%	2126.3%	1822.5%	1620%	1417.5%	1215%
Component 430653/43	80	not available	4151.3%	3240%	2227.5%	1923.8%	1620%	1417.5%	1215%
Component 510653/51	40	not available	2665%	2152.5%	1742.5%	1435%	1127.5%	820%	512.5%
Component 520653/52	40	not available	2665%	2152.5%	1742.5%	1435%	1127.5%	820%	512.5%
Component 610653/61	40	not available	2665%	2152.5%	1742.5%	1435%	1127.5%	820%	512.5%
Component 620653/62	40	not available	2665%	2152.5%	1742.5%	1435%	1127.5%	820%	512.5%
Component 630653/63	40	not available	2665%	2152.5%	1742.5%	1435%	1127.5%	820%	512.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 November 2022 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

June 2022 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, June 2022: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option BX (components 21, 41, 51)	200	13869%	11658%	9447%	7336.5%	6331.5%	5326.5%	4422%	3517.5%
Option BY (components 22, 42, 52)	200	13467%	11457%	9447%	7437%	6331.5%	5326.5%	4321.5%	3316.5%
Option CX (components 21, 41, 61)	200	13869%	11658%	9447%	7336.5%	6331.5%	5326.5%	4422%	3517.5%
Option CY (components 22, 42, 62)	200	13467%	11457%	9447%	7437%	6331.5%	5326.5%	4321.5%	3316.5%
Option CZ (components 23, 43, 63)	200	14170.5%	11959.5%	9748.5%	7638%	6633%	5728.5%	4824%	3919.5%
Option FX (components 11, 31, 51)	200	not available	not available	not available	8844%	7537.5%	6331.5%	5125.5%	3919.5%
Option FY (components 12, 32, 52)	200	not available	not available	not available	8844%	7638%	6432%	5226%	4020%
Option GX (components 11, 31, 61)	200	not available	not available	not available	8844%	7537.5%	6331.5%	5125.5%	3919.5%
Option GY (components 12, 32, 62)	200	not available	not available	not available	8844%	7638%	6432%	5226%	4020%
Option GZ (components 13, 33, 63)	200	not available	not available	not available	8844%	7537.5%	6331.5%	5125.5%	3919.5%
Option P1 (component 50)	90	7684.4%	6774.4%	5864.4%	4954.4%	4044.4%	3134.4%	2224.4%	1314.4%

Cambridge International IGCSE Combined Science paper boundaries, June 2022
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 110653/11	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 120653/12	40	not available	not available	not available	2050%	1947.5%	1742.5%	1537.5%	1332.5%
Component 130653/13	40	not available	not available	not available	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 210653/21	40	not available	2562.5%	2152.5%	1845%	1640%	1537.5%	1332.5%	1127.5%
Component 220653/22	40	not available	2460%	2152.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 230653/23	40	not available	2767.5%	2460%	2152.5%	1845%	1640%	1537.5%	1435%
Component 310653/31	80	not available	not available	not available	3138.8%	2531.3%	2025%	1518.8%	1012.5%
Component 320653/32	80	not available	not available	not available	3037.5%	2430%	1923.8%	1417.5%	911.3%
Component 330653/33	80	not available	not available	not available	3138.8%	2531.3%	2025%	1518.8%	1012.5%
Component 410653/41	80	not available	4151.3%	3037.5%	2025%	1620%	1215%	911.3%	67.5%
Component 420653/42	80	not available	4050%	3037.5%	2025%	1620%	1215%	911.3%	67.5%
Component 430653/43	80	not available	4151.3%	3037.5%	1923.8%	1721.3%	1417.5%	1012.5%	67.5%
Component 500653/50	90	not available	6774.4%	5864.4%	4954.4%	4044.4%	3134.4%	2224.4%	1314.4%
Component 510653/51	40	not available	2767.5%	2562.5%	2152.5%	1947.5%	1537.5%	1332.5%	1127.5%
Component 520653/52	40	not available	2870%	2562.5%	2050%	1845%	1537.5%	1230%	922.5%
Component 610653/61	40	not available	2767.5%	2562.5%	2152.5%	1947.5%	1537.5%	1332.5%	1127.5%
Component 620653/62	40	not available	2870%	2562.5%	2050%	1845%	1537.5%	1230%	922.5%
Component 630653/63	40	not available	2767.5%	2460%	2152.5%	1845%	1537.5%	1332.5%	1127.5%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 June 2022 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

March 2022 Cambridge International IGCSE Combined Science grade boundaries

Cambridge International IGCSE Combined Science grade boundaries, March 2022: the qualification as a whole
Qualification or route	Max mark	Grade: lowest mark, and % of max mark
Qualification or route	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Option CY (components 22, 42, 62)	200	13969.5%	11758.5%	9547.5%	7437%	6231%	5025%	3819%	2613%
Option GY (components 12, 32, 62)	200	not available	not available	not available	9547.5%	7939.5%	6432%	4924.5%	3417%

Cambridge International IGCSE Combined Science paper boundaries, March 2022
Paper	Max mark	Grade: lowest mark, and % of max mark
Paper	Max mark	Grade A*	Grade A	Grade B	Grade C	Grade D	Grade E	Grade F	Grade G
Component 120653/12	40	not available	not available	not available	2255%	2050%	1845%	1640%	1435%
Component 220653/22	40	not available	2460%	2152.5%	1947.5%	1742.5%	1537.5%	1332.5%	1127.5%
Component 320653/32	80	not available	not available	not available	3543.8%	2835%	2126.3%	1417.5%	810%
Component 420653/42	80	not available	4455%	3341.3%	2227.5%	1721.3%	1316.3%	911.3%	56.3%
Component 620653/62	40	not available	2665%	2255%	1845%	1537.5%	1127.5%	717.5%	410%

Cambridge sets a threshold for each component and for each option (a combination of components). Only the option thresholds decide the grade, on the weighted total shown as the maximum.
No component has an A* threshold.

Source: Cambridge grade threshold table, 0653 March 2022 (opens cambridgeinternational.org in a new tab)

Use these on your question decks: keep them in your account, then choose them on any deck's Grade boundaries page to see your predicted grade against them.

Which boundaries

Practise, then check your grade

Sit a Combined Science paper, mark it with its mark scheme, and read your total against the same year's table here. When you run out of papers, cookie can make fresh exam-style questions from your notes or the specification and mark your answers. Keep any year's boundaries below to see your predicted grade on a deck against them.

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Common questions

What were the Combined Science grade boundaries in June 2026?

In June 2026, a C needed 91 out of 200 on components 11, 31, 51. On components 11, 31, 61, a C needed 91 out of 200. On components 12, 32, 52, a C needed 93 out of 200. The full table, with the boundaries for each paper, is at the top of this page.

Where do these Cambridge IGCSE Combined Science grade boundaries come from?

Every number is copied from Cambridge International's own published grade boundary document for that series, which is linked under each table. We lay them out by course so you don't have to search a document covering every subject, and nothing is changed or estimated.

Why do grade boundaries change every year?

Boundaries are set after each exam has been marked, so that a grade means the same standard even when one year's paper is harder than another's. A harder paper usually has lower boundaries. That is why an old paper is best marked against its own year's boundaries, which is what the tables here are for.

When are new Combined Science grade boundaries published?

Cambridge publishes grade threshold tables when results are released: in August for the June series, in January for November and in May for March. We add them here after that.

More grade boundaries: every Cambridge course or every board.

cookie is independent and is not affiliated with or endorsed by any exam board. Every paper here is a link to the board's own copy on its own website, and the papers belong to the boards that set them. If a link has stopped working, the board's own past paper page is linked on each course. The grade boundaries are copied from the boards’ own published documents, each linked under its table.