Exam Score Calculator - Calculate Your Marks Percentage Instantly
Enter your marks obtained and total marks to get your percentage, grade, and pass/fail status. Supports multiple grading systems worldwide.
What is the Exam Score Calculator?
The Exam Score Calculator is a free online tool that instantly converts your raw exam marks into a percentage, assigns a letter grade, and shows your pass/fail status. Whether you just finished a school test, board exam, or university final - enter your marks and get instant results.
This calculator supports multiple grading systems used worldwide: CBSE (India) with its A1-E grading scale, US (A-F) with the standard American letter grades, and UK (First Class, 2:1, 2:2) honours classification. Simply select your grading system from the dropdown to get the correct grade mapping.
The tool also provides smart feedback based on your score - encouraging messages for high performers and motivational tips for those who need improvement. You can configure the passing percentage to match your institution's requirements (default: 33% for CBSE, 60% for US). Completely free, works on any device, no signup required - your marks data stays in your browser.
How to Calculate Exam Percentage?
The formula is simple:
Example: If you scored 425 out of 500 marks:
(425 500) 100 = 85%
This percentage is then mapped to a letter grade based on your selected grading system.
Grading Systems Explained
🇮🇳 CBSE (India)
81-90% → A2
71-80% → B1
61-70% → B2
51-60% → C1
41-50% → C2
33-40% → D
<33% → E (Fail)
🇺🇸 US (A-F)
80-89% → B
70-79% → C
60-69% → D
<60% → F (Fail)
🇬🇧 UK (Honours)
60-69% → Upper Second (2:1)
50-59% → Lower Second (2:2)
40-49% → Third Class
<40% → Fail
How to Use the Exam Score Calculator
- Enter the marks you obtained in your exam.
- Enter the total marks (maximum possible score).
- Select your grading system - CBSE, US, or UK.
- Adjust the passing percentage if needed (default: 33%).
- Click "Calculate Score" to see your percentage, grade, and status.
Frequently Asked Questions
Divide marks obtained by total marks, then multiply by 100. Example: 82/100 100 = 82%.
It varies by institution. CBSE (India) uses 33%, US typically uses 60%, and UK uses 40%. You can configure it in the calculator.
Your percentage is mapped to a grade using the selected grading system. For example, in the US: 90-100% = A, 80-89% = B, 70-79% = C.
CBSE (India), US (A-F), and UK (First Class, Upper Second, etc.) grading systems are supported.
Yes! This works for school tests, board exams, university finals, entrance exams, or any scored test.
Last updated: June 30, 2026