What Is a Marks Calculator?
A marks calculator adds up the marks you scored across all your subjects and works out your overall percentage and grade — useful for report cards, admissions, and tracking your academic performance.
Simply enter the marks you obtained and the total marks for each subject, and the calculator does the rest.
Marks Percentage Formula
Your overall percentage is calculated using the following formula:
How Does This Calculator Work?
Add Your Subjects
Enter obtained and total marks for each subject.
Add More If Needed
Use "Add Another Subject" for as many subjects as you have.
Get Your Result
Instantly see your total percentage and grade.
Grading Scale Used
This calculator uses the following common grading scale to show your letter grade. Your institution's official grading scale may differ slightly.
Frequently Asked Questions
Add up the marks you obtained across all subjects, divide by the total marks across all subjects, then multiply by 100.
Yes. Each subject can have its own total marks — the calculator adds everything together correctly regardless of differing totals.
No, grading scales vary by institution and country. This calculator uses a commonly used scale — check your institution's official grading policy for exact grades.
Yes. The calculator can be used online without creating an account.