How to Calculate Marks Percentage

For one test, divide earned marks by possible marks and multiply by 100. A score of 42 out of 50 is 84%.

Combining subjects with different totals

Add earned marks across subjects and add possible marks before dividing. Marks of 72/80 and 85/100 give 157/180, or 87.22%. Averaging the two subject percentages gives a different result because it treats both subjects as equally weighted.

Check the reporting rules

A school may convert the result to a letter, band, grade point, or division. Practical marks, moderation, and separate pass requirements can also matter.

Avoid common mistakes

• Use the maximum marks for the exact assessment.
• Do not mix scaled and raw marks.
• Keep decimal places until the final step.

Use the Marks Percentage Calculator for several subjects or the Percentage Calculator for one part-of-whole question.