Grade boundaries

Cambridge Cambridge IGCSE Science - Combined 0653 grade boundaries June 2025

The least raw mark that reached each grade in June 2025, as Cambridge printed it, for the whole subject and each paper.

From Cambridge’s grade boundaries for June 2025: the board’s document.

Grade0653/51out of 400653/52out of 400653/61out of 400653/62out of 400653/63out of 40
A2828282827
B2424242423
C2020202019
D1717171716
E1414141413
F1211121111
G1081089
Core tier
GradeWhole subject (11, 31, 51)out of 200Whole subject (11, 31, 61)out of 200Whole subject (12, 32, 52)out of 200Whole subject (12, 32, 62)out of 200Whole subject (13, 33, 63)out of 2000653/11out of 400653/12out of 400653/13out of 400653/31out of 800653/32out of 800653/33out of 80
C8787878786191919313131
D7373737372171717252525
E6060606059151515191919
F4848474747131313131313
G3636343435111111888
Extended tier
GradeWhole subject (21, 41, 51)out of 200Whole subject (21, 41, 61)out of 200Whole subject (22, 42, 52)out of 200Whole subject (22, 42, 62)out of 200Whole subject (23, 43, 63)out of 2000653/21out of 400653/22out of 400653/23out of 400653/41out of 800653/42out of 800653/43out of 80
A*144144146146145––––––
A121121122122121262727434343
B9898989897222323333232
C7676757574191919222121
D6565646463171717181717
E5555545453151515151414
F4545444444131313111111
G3535343435111111788

Marks for each grade

Paper 0653/51

  • 28 out of 40 on Cambridge 0653 paper 0653/51 was a grade A in June 2025.
  • 24 out of 40 on Cambridge 0653 paper 0653/51 was a grade B in June 2025.
  • 20 out of 40 on Cambridge 0653 paper 0653/51 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 paper 0653/51 was a grade D in June 2025.
  • 14 out of 40 on Cambridge 0653 paper 0653/51 was a grade E in June 2025.
  • 12 out of 40 on Cambridge 0653 paper 0653/51 was a grade F in June 2025.
  • 10 out of 40 on Cambridge 0653 paper 0653/51 was a grade G in June 2025.

Paper 0653/52

  • 28 out of 40 on Cambridge 0653 paper 0653/52 was a grade A in June 2025.
  • 24 out of 40 on Cambridge 0653 paper 0653/52 was a grade B in June 2025.
  • 20 out of 40 on Cambridge 0653 paper 0653/52 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 paper 0653/52 was a grade D in June 2025.
  • 14 out of 40 on Cambridge 0653 paper 0653/52 was a grade E in June 2025.
  • 11 out of 40 on Cambridge 0653 paper 0653/52 was a grade F in June 2025.
  • 8 out of 40 on Cambridge 0653 paper 0653/52 was a grade G in June 2025.

Paper 0653/61

  • 28 out of 40 on Cambridge 0653 paper 0653/61 was a grade A in June 2025.
  • 24 out of 40 on Cambridge 0653 paper 0653/61 was a grade B in June 2025.
  • 20 out of 40 on Cambridge 0653 paper 0653/61 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 paper 0653/61 was a grade D in June 2025.
  • 14 out of 40 on Cambridge 0653 paper 0653/61 was a grade E in June 2025.
  • 12 out of 40 on Cambridge 0653 paper 0653/61 was a grade F in June 2025.
  • 10 out of 40 on Cambridge 0653 paper 0653/61 was a grade G in June 2025.

Paper 0653/62

  • 28 out of 40 on Cambridge 0653 paper 0653/62 was a grade A in June 2025.
  • 24 out of 40 on Cambridge 0653 paper 0653/62 was a grade B in June 2025.
  • 20 out of 40 on Cambridge 0653 paper 0653/62 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 paper 0653/62 was a grade D in June 2025.
  • 14 out of 40 on Cambridge 0653 paper 0653/62 was a grade E in June 2025.
  • 11 out of 40 on Cambridge 0653 paper 0653/62 was a grade F in June 2025.
  • 8 out of 40 on Cambridge 0653 paper 0653/62 was a grade G in June 2025.

Paper 0653/63

  • 27 out of 40 on Cambridge 0653 paper 0653/63 was a grade A in June 2025.
  • 23 out of 40 on Cambridge 0653 paper 0653/63 was a grade B in June 2025.
  • 19 out of 40 on Cambridge 0653 paper 0653/63 was a grade C in June 2025.
  • 16 out of 40 on Cambridge 0653 paper 0653/63 was a grade D in June 2025.
  • 13 out of 40 on Cambridge 0653 paper 0653/63 was a grade E in June 2025.
  • 11 out of 40 on Cambridge 0653 paper 0653/63 was a grade F in June 2025.
  • 9 out of 40 on Cambridge 0653 paper 0653/63 was a grade G in June 2025.

Core tier, in total (11, 31, 51)

  • 87 out of 200 on Cambridge 0653 Core tier (11, 31, 51) in total was a grade C in June 2025.
  • 73 out of 200 on Cambridge 0653 Core tier (11, 31, 51) in total was a grade D in June 2025.
  • 60 out of 200 on Cambridge 0653 Core tier (11, 31, 51) in total was a grade E in June 2025.
  • 48 out of 200 on Cambridge 0653 Core tier (11, 31, 51) in total was a grade F in June 2025.
  • 36 out of 200 on Cambridge 0653 Core tier (11, 31, 51) in total was a grade G in June 2025.

Core tier, in total (11, 31, 61)

  • 87 out of 200 on Cambridge 0653 Core tier (11, 31, 61) in total was a grade C in June 2025.
  • 73 out of 200 on Cambridge 0653 Core tier (11, 31, 61) in total was a grade D in June 2025.
  • 60 out of 200 on Cambridge 0653 Core tier (11, 31, 61) in total was a grade E in June 2025.
  • 48 out of 200 on Cambridge 0653 Core tier (11, 31, 61) in total was a grade F in June 2025.
  • 36 out of 200 on Cambridge 0653 Core tier (11, 31, 61) in total was a grade G in June 2025.

Core tier, in total (12, 32, 52)

  • 87 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade C in June 2025.
  • 73 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade D in June 2025.
  • 60 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade E in June 2025.
  • 47 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade F in June 2025.
  • 34 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade G in June 2025.

Core tier, in total (12, 32, 62)

  • 87 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade C in June 2025.
  • 73 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade D in June 2025.
  • 60 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade E in June 2025.
  • 47 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade F in June 2025.
  • 34 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade G in June 2025.

Core tier, in total (13, 33, 63)

  • 86 out of 200 on Cambridge 0653 Core tier (13, 33, 63) in total was a grade C in June 2025.
  • 72 out of 200 on Cambridge 0653 Core tier (13, 33, 63) in total was a grade D in June 2025.
  • 59 out of 200 on Cambridge 0653 Core tier (13, 33, 63) in total was a grade E in June 2025.
  • 47 out of 200 on Cambridge 0653 Core tier (13, 33, 63) in total was a grade F in June 2025.
  • 35 out of 200 on Cambridge 0653 Core tier (13, 33, 63) in total was a grade G in June 2025.

Core tier, paper 0653/11

  • 19 out of 40 on Cambridge 0653 Core paper 0653/11 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 Core paper 0653/11 was a grade D in June 2025.
  • 15 out of 40 on Cambridge 0653 Core paper 0653/11 was a grade E in June 2025.
  • 13 out of 40 on Cambridge 0653 Core paper 0653/11 was a grade F in June 2025.
  • 11 out of 40 on Cambridge 0653 Core paper 0653/11 was a grade G in June 2025.

Core tier, paper 0653/12

  • 19 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade D in June 2025.
  • 15 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade E in June 2025.
  • 13 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade F in June 2025.
  • 11 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade G in June 2025.

Core tier, paper 0653/13

  • 19 out of 40 on Cambridge 0653 Core paper 0653/13 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 Core paper 0653/13 was a grade D in June 2025.
  • 15 out of 40 on Cambridge 0653 Core paper 0653/13 was a grade E in June 2025.
  • 13 out of 40 on Cambridge 0653 Core paper 0653/13 was a grade F in June 2025.
  • 11 out of 40 on Cambridge 0653 Core paper 0653/13 was a grade G in June 2025.

Core tier, paper 0653/31

  • 31 out of 80 on Cambridge 0653 Core paper 0653/31 was a grade C in June 2025.
  • 25 out of 80 on Cambridge 0653 Core paper 0653/31 was a grade D in June 2025.
  • 19 out of 80 on Cambridge 0653 Core paper 0653/31 was a grade E in June 2025.
  • 13 out of 80 on Cambridge 0653 Core paper 0653/31 was a grade F in June 2025.
  • 8 out of 80 on Cambridge 0653 Core paper 0653/31 was a grade G in June 2025.

Core tier, paper 0653/32

  • 31 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade C in June 2025.
  • 25 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade D in June 2025.
  • 19 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade E in June 2025.
  • 13 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade F in June 2025.
  • 8 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade G in June 2025.

Core tier, paper 0653/33

  • 31 out of 80 on Cambridge 0653 Core paper 0653/33 was a grade C in June 2025.
  • 25 out of 80 on Cambridge 0653 Core paper 0653/33 was a grade D in June 2025.
  • 19 out of 80 on Cambridge 0653 Core paper 0653/33 was a grade E in June 2025.
  • 13 out of 80 on Cambridge 0653 Core paper 0653/33 was a grade F in June 2025.
  • 8 out of 80 on Cambridge 0653 Core paper 0653/33 was a grade G in June 2025.

Extended tier, in total (21, 41, 51)

  • 144 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade A* in June 2025.
  • 121 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade A in June 2025.
  • 98 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade B in June 2025.
  • 76 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade C in June 2025.
  • 65 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade D in June 2025.
  • 55 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade E in June 2025.
  • 45 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade F in June 2025.
  • 35 out of 200 on Cambridge 0653 Extended tier (21, 41, 51) in total was a grade G in June 2025.

Extended tier, in total (21, 41, 61)

  • 144 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade A* in June 2025.
  • 121 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade A in June 2025.
  • 98 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade B in June 2025.
  • 76 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade C in June 2025.
  • 65 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade D in June 2025.
  • 55 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade E in June 2025.
  • 45 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade F in June 2025.
  • 35 out of 200 on Cambridge 0653 Extended tier (21, 41, 61) in total was a grade G in June 2025.

Extended tier, in total (22, 42, 52)

  • 146 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade A* in June 2025.
  • 122 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade A in June 2025.
  • 98 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade B in June 2025.
  • 75 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade C in June 2025.
  • 64 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade D in June 2025.
  • 54 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade E in June 2025.
  • 44 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade F in June 2025.
  • 34 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade G in June 2025.

Extended tier, in total (22, 42, 62)

  • 146 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade A* in June 2025.
  • 122 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade A in June 2025.
  • 98 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade B in June 2025.
  • 75 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade C in June 2025.
  • 64 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade D in June 2025.
  • 54 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade E in June 2025.
  • 44 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade F in June 2025.
  • 34 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade G in June 2025.

Extended tier, in total (23, 43, 63)

  • 145 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade A* in June 2025.
  • 121 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade A in June 2025.
  • 97 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade B in June 2025.
  • 74 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade C in June 2025.
  • 63 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade D in June 2025.
  • 53 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade E in June 2025.
  • 44 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade F in June 2025.
  • 35 out of 200 on Cambridge 0653 Extended tier (23, 43, 63) in total was a grade G in June 2025.

Extended tier, paper 0653/21

  • 26 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade A in June 2025.
  • 22 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade B in June 2025.
  • 19 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade D in June 2025.
  • 15 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade E in June 2025.
  • 13 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade F in June 2025.
  • 11 out of 40 on Cambridge 0653 Extended paper 0653/21 was a grade G in June 2025.

Extended tier, paper 0653/22

  • 27 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade A in June 2025.
  • 23 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade B in June 2025.
  • 19 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade D in June 2025.
  • 15 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade E in June 2025.
  • 13 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade F in June 2025.
  • 11 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade G in June 2025.

Extended tier, paper 0653/23

  • 27 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade A in June 2025.
  • 23 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade B in June 2025.
  • 19 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade C in June 2025.
  • 17 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade D in June 2025.
  • 15 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade E in June 2025.
  • 13 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade F in June 2025.
  • 11 out of 40 on Cambridge 0653 Extended paper 0653/23 was a grade G in June 2025.

Extended tier, paper 0653/41

  • 43 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade A in June 2025.
  • 33 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade B in June 2025.
  • 22 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade C in June 2025.
  • 18 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade D in June 2025.
  • 15 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade E in June 2025.
  • 11 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade F in June 2025.
  • 7 out of 80 on Cambridge 0653 Extended paper 0653/41 was a grade G in June 2025.

Extended tier, paper 0653/42

  • 43 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade A in June 2025.
  • 32 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade B in June 2025.
  • 21 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade C in June 2025.
  • 17 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade D in June 2025.
  • 14 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade E in June 2025.
  • 11 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade F in June 2025.
  • 8 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade G in June 2025.

Extended tier, paper 0653/43

  • 43 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade A in June 2025.
  • 32 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade B in June 2025.
  • 21 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade C in June 2025.
  • 17 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade D in June 2025.
  • 14 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade E in June 2025.
  • 11 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade F in June 2025.
  • 8 out of 80 on Cambridge 0653 Extended paper 0653/43 was a grade G in June 2025.