Marks Percentage Calculator
🔒 In your browserOverall marks percentage across subjects, with grade.
How it works
Calculate your overall marks percentage across subjects. Enter the marks you obtained and the maximum for each subject, and get your total percentage and grade.
0 %
0 / 100 marks · grade F (Fail)
🔒 Calculated entirely in your browser — nothing is uploaded.
🔒 Calculated in your browser: your marks, grades and dates are never uploaded. Grading rules and conversion formulas vary by board and university, so treat the result as a reliable estimate and confirm anything official with your institution.
About the Marks Percentage Calculator
This free marks percentage calculator works out your overall percentage across subjects. Enter the marks you scored and the maximum for each subject, and get your total percentage and an indicative grade.
It calculates in your browser — handy for report cards, applications and cut-off checks.
How to calculate marks percentage
Add up the marks you obtained across all subjects, add up the maximum possible, then divide the first by the second and multiply by 100. Subjects can have different maximums — a 50-mark practical and a 100-mark theory paper are handled correctly because the calculator totals both sides rather than averaging the per-subject percentages.
Why you total the marks, not average the percentages
Averaging each subject's percentage can mislead when the maximums differ. Suppose you score 45/50 in a practical (90%) and 60/100 in theory (60%). Averaging the two percentages gives 75%, but your real percentage is (45 + 60) ÷ (50 + 100) × 100 = 70%, because the 100-mark paper should count twice as much as the 50-mark one. This calculator always totals obtained and maximum marks first, so weightier papers count for more automatically.
Frequently asked questions
How do I calculate the percentage of marks?
Divide your total marks obtained by the total maximum marks and multiply by 100. For 425 out of 500, that's 425 ÷ 500 × 100 = 85%.
What if subjects have different maximum marks?
That's fine — the calculator sums the obtained and maximum marks across all subjects, so subjects out of 50 and 100 combine correctly.
Should I average the subject percentages instead?
Not when maximums differ — that over- or under-counts smaller papers. Total the marks obtained and maximums separately, as this tool does, for the true overall percentage.
Does it show my grade?
Yes, it shows an indicative letter grade alongside the percentage, though exact grade boundaries vary by board and school.
How do I handle subjects with weightage?
If a subject counts for more than its marks suggest, scale its maximum to match — or use the Grade Calculator, which is built for components with explicit weights.
Is my data uploaded?
No. The calculation runs locally in your browser.