Grade boundaries

Cambridge Cambridge IGCSE Science - Combined 0653 grade boundaries March 2025

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

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

Grade0653/52out of 400653/62out of 40
A2929
B2525
C2222
D1818
E1515
F1111
G77
Core tier
GradeWhole subject (12, 32, 52)out of 200Whole subject (12, 32, 62)out of 2000653/12out of 400653/32out of 80
C98981938
D83831732
E69691624
F53531417
G37371210
Extended tier
GradeWhole subject (22, 42, 52)out of 200Whole subject (22, 42, 62)out of 2000653/22out of 400653/42out of 80
A*154154––
A1291292945
B1041042434
C80802022
D68681819
E56561515
F44441311
G3232117

Marks for each grade

Paper 0653/52

  • 29 out of 40 on Cambridge 0653 paper 0653/52 was a grade A in March 2025.
  • 25 out of 40 on Cambridge 0653 paper 0653/52 was a grade B in March 2025.
  • 22 out of 40 on Cambridge 0653 paper 0653/52 was a grade C in March 2025.
  • 18 out of 40 on Cambridge 0653 paper 0653/52 was a grade D in March 2025.
  • 15 out of 40 on Cambridge 0653 paper 0653/52 was a grade E in March 2025.
  • 11 out of 40 on Cambridge 0653 paper 0653/52 was a grade F in March 2025.
  • 7 out of 40 on Cambridge 0653 paper 0653/52 was a grade G in March 2025.

Paper 0653/62

  • 29 out of 40 on Cambridge 0653 paper 0653/62 was a grade A in March 2025.
  • 25 out of 40 on Cambridge 0653 paper 0653/62 was a grade B in March 2025.
  • 22 out of 40 on Cambridge 0653 paper 0653/62 was a grade C in March 2025.
  • 18 out of 40 on Cambridge 0653 paper 0653/62 was a grade D in March 2025.
  • 15 out of 40 on Cambridge 0653 paper 0653/62 was a grade E in March 2025.
  • 11 out of 40 on Cambridge 0653 paper 0653/62 was a grade F in March 2025.
  • 7 out of 40 on Cambridge 0653 paper 0653/62 was a grade G in March 2025.

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

  • 98 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade C in March 2025.
  • 83 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade D in March 2025.
  • 69 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade E in March 2025.
  • 53 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade F in March 2025.
  • 37 out of 200 on Cambridge 0653 Core tier (12, 32, 52) in total was a grade G in March 2025.

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

  • 98 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade C in March 2025.
  • 83 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade D in March 2025.
  • 69 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade E in March 2025.
  • 53 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade F in March 2025.
  • 37 out of 200 on Cambridge 0653 Core tier (12, 32, 62) in total was a grade G in March 2025.

Core tier, paper 0653/12

  • 19 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade C in March 2025.
  • 17 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade D in March 2025.
  • 16 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade E in March 2025.
  • 14 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade F in March 2025.
  • 12 out of 40 on Cambridge 0653 Core paper 0653/12 was a grade G in March 2025.

Core tier, paper 0653/32

  • 38 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade C in March 2025.
  • 32 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade D in March 2025.
  • 24 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade E in March 2025.
  • 17 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade F in March 2025.
  • 10 out of 80 on Cambridge 0653 Core paper 0653/32 was a grade G in March 2025.

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

  • 154 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade A* in March 2025.
  • 129 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade A in March 2025.
  • 104 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade B in March 2025.
  • 80 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade C in March 2025.
  • 68 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade D in March 2025.
  • 56 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade E in March 2025.
  • 44 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade F in March 2025.
  • 32 out of 200 on Cambridge 0653 Extended tier (22, 42, 52) in total was a grade G in March 2025.

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

  • 154 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade A* in March 2025.
  • 129 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade A in March 2025.
  • 104 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade B in March 2025.
  • 80 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade C in March 2025.
  • 68 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade D in March 2025.
  • 56 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade E in March 2025.
  • 44 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade F in March 2025.
  • 32 out of 200 on Cambridge 0653 Extended tier (22, 42, 62) in total was a grade G in March 2025.

Extended tier, paper 0653/22

  • 29 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade A in March 2025.
  • 24 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade B in March 2025.
  • 20 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade C in March 2025.
  • 18 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade D in March 2025.
  • 15 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade E in March 2025.
  • 13 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade F in March 2025.
  • 11 out of 40 on Cambridge 0653 Extended paper 0653/22 was a grade G in March 2025.

Extended tier, paper 0653/42

  • 45 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade A in March 2025.
  • 34 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade B in March 2025.
  • 22 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade C in March 2025.
  • 19 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade D in March 2025.
  • 15 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade E in March 2025.
  • 11 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade F in March 2025.
  • 7 out of 80 on Cambridge 0653 Extended paper 0653/42 was a grade G in March 2025.