How to use Marks Percentage Calculator
Enter the total marks you obtained and the maximum marks available. For several subjects, add the obtained marks together and add the corresponding maximum marks together before using the tool.
This calculation weights a subject by its maximum possible marks. It does not convert your percentage into an official grade, division or GPA; those depend on the rules published by your school or university.
The formula
Marks percentage = marks obtained / maximum marks × 100
A worked example
Marks obtained: 420 · Maximum marks: 500
Marks percentage: 84%
Questions about this calculation
How do I combine different subjects?
Add all obtained marks and all maximum marks, then use those totals.
Does this produce an official grade?
No. Grades and divisions depend on your institution’s grading rules.
Formula checks: 2026-10-08. Assumptions & corrections.