Marks Percentage Calculator

Enter marks obtained and total marks to get a percentage and the marks still remaining. You can also switch to subject-wise mode, add more than one paper, and see a single overall percentage. Marks above the total, negative marks, or a total of 0 are rejected with an explanation — this tool is for ordinary exam marking, not extra-credit schemes that go past 100%.

Formula

Percentage = (Marks obtained ÷ Total marks) × 100. Remaining = Total − Obtained.

Step-by-step

Enter marks obtained and the official total for that paper.
Divide obtained by total and multiply by 100 to get the percentage.
Subtract obtained from total if you need the marks remaining.
In subject-wise mode, the calculator adds the obtained marks and the totals first, then applies the same formula to the combined figures.

Practical examples

42 out of 50

42 ÷ 50 × 100 = 84%. Marks remaining: 8.

A full score, 50 out of 50

The percentage is 100%. Remaining marks are 0.

Two subjects: 40/50 and 18/20

Combined marks: 58 out of 70. 58 ÷ 70 × 100 ≈ 82.857142%.

When to use this calculator

School and college papers, mocks, and combining a short set of subject scores into one percentage.

Common mistakes

Averaging two subject percentages instead of combining the raw marks, which weights a 20-mark paper the same as a 100-mark paper.
Entering a total of 0, or obtained marks that exceed the total.

Frequently asked questions

Why can obtained marks not exceed the total?

This calculator treats the total as a hard maximum, which is the usual exam rule. If you need to allow extra credit, use the fraction-to-percentage tool, which will compute figures above 100%.

Is this the same as a GPA calculator?

No. GPA converts letter or grade-point scales. This page only turns raw marks into a percentage.

Marks Percentage Calculator