Grade Percentage Calculator – Convert Marks to Percentage & Letter Grade
Instantly convert your exam or assignment marks to a percentage grade with our Grade Percentage Calculator. Enter your score and the maximum marks to get your grade percentage, letter grade, and GPA equivalent.
Grade Results
Enter marks and click Calculate to see results
| Letter Grade | Percentage Range | GPA (4.0 Scale) | Description |
|---|---|---|---|
| A | 93-100% | 4.0 | Excellent |
| A- | 90-92% | 3.7 | Excellent |
| B+ | 87-89% | 3.3 | Good |
| B | 83-86% | 3.0 | Good |
| B- | 80-82% | 2.7 | Good |
| C+ | 77-79% | 2.3 | Average |
| C | 73-76% | 2.0 | Average |
| C- | 70-72% | 1.7 | Average |
| D+ | 67-69% | 1.3 | Below Average |
| D | 63-66% | 1.0 | Below Average |
| D- | 60-62% | 0.7 | Below Average |
| F | 0-59% | 0.0 | Failing |
Note: Some institutions use different cutoffs. Always check your school's specific grading policy.
| Country | Top Grade | Pass Mark | Scale Type |
|---|---|---|---|
| United States | A (93-100%) | 60% (D-) | Letter (A-F) |
| United Kingdom | First (70%+) | 40% (Third) | Classification |
| India | O (90%+) | 40% (C) | 10-point GPA |
| Australia | HD (85%+) | 50% (P) | HD-D-C-P-N |
| Germany | 1.0 (sehr gut) | 4.0 (ausreichend) | 1-6 (inverted) |
| France | 18-20 (très bien) | 10/20 | 0-20 scale |
| Japan | S (90%+) | 60% (D) | S-A-B-C-D |
Germany uses an inverted scale where 1.0 is best and 6.0 is failing. France's 20/20 is theoretically perfect but rarely awarded – 16/20 is considered excellent.
Identify your marks obtained
This is the score you received on the exam or assignment. For multiple assignments, add them all up first.
Find the total possible marks
This is the maximum score achievable. If you have multiple assignments, add up all the maximum scores.
Divide and multiply by 100
Percentage = (Marks Obtained ÷ Total Marks) × 100. For 85/100: (85 ÷ 100) × 100 = 85%.
Look up your letter grade
Use the grading scale for your institution. 85% is a B in the US, a First in the UK, and an A in India.
How do I calculate my overall grade from multiple assignments?
Add up all marks obtained, then divide by total possible marks. If you scored 85/100, 45/50, and 18/25: total obtained = 148, total possible = 175. Percentage = (148/175) × 100 = 84.6%. Don't average the percentages – that gives wrong results if assignments have different weights.
What's the difference between weighted and unweighted GPA?
Unweighted GPA treats all classes equally – an A in PE counts the same as an A in AP Physics. Weighted GPA gives extra points for honors/AP/IB classes. An A in AP might be 5.0 instead of 4.0. Weighted GPAs can exceed 4.0; unweighted cannot.
Is 70% a good grade?
Depends on the system. In the US, 70% is a C- (average). In the UK, 70% is a First (excellent – top classification). In India, 70% is an A (very good). Context matters. Graduate programs often require 3.0+ GPA (roughly 83%+) for admission.
How do I convert my grade to a different country's system?
Use a grade conversion tool or WES (World Education Services) guidelines. Rough guide: US A (90-100%) ≈ UK First (70%+) ≈ India O/A (80%+) ≈ Australia HD (85%+). But conversion isn't exact – different systems test different skills.
What GPA do I need for medical/law school?
Competitive US medical schools expect 3.7+ GPA (roughly 90%+). Top law schools want 3.8+. But GPA isn't everything – MCAT/LSAT scores, research, and extracurriculars matter too. State schools often have lower thresholds for in-state applicants.
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