Academic Calculators

Marks Percentage Calculator

Add marks from subjects or papers with different maximum scores. This uses total marks earned out of total marks available, not an equal average of subject percentages.

Subject marks

Enter earned and available marks for each subject or paper in the same reporting period.

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Subjects with different maximum marks

What receives more weight

The combined result weights each subject by its available marks. It is different from averaging subject percentages equally.

Why raw marks are added first

Marks of 72/80 and 85/100 total 157/180, or 87.22%.

Do not mix these figures

  • Averaging percentages when subjects have different totals.
  • Mixing scaled and raw marks.
  • Including optional subjects that should be excluded.

Reviewed September 2026.

Questions about Marks Percentage Calculator

Why does the combined percentage differ from my average percentage?

Adding marks gives larger papers more weight; averaging percentages treats subjects equally.

Should optional subjects be included?

Include them only when the school includes those marks in the reported overall percentage.

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