Grade Calculator
Convert your marks into a percentage, letter grade and 4.0 GPA
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total
What is the Grade Calculator?
The Grade Calculator converts marks obtained out of a total into a percentage, a letter grade and an equivalent 4.0-scale GPA point — useful for quickly checking how a test or assignment score translates onto a standard grading scale.
How to Use the Grade Calculator
- Enter the marks you obtained.
- Enter the total possible marks (defaults to 100).
- Read your percentage, letter grade and GPA, calculated instantly.
Grading Scale Used
| Percentage | Letter Grade | GPA (4.0 scale) |
|---|---|---|
| 90–100% | A+ | 4.0 |
| 80–89% | A | 3.7 |
| 70–79% | B+ | 3.3 |
| 60–69% | B | 3.0 |
| 50–59% | C+ | 2.3 |
| 40–49% | C | 2.0 |
| 33–39% | D | 1.0 |
| Below 33% | F | 0.0 |
Grading scales vary by school, district and country. Use this as a general reference and check your institution's specific grading policy for official results.
Frequently Asked Questions
No — grading scales vary widely between schools, districts and countries. This calculator uses a common general-purpose scale; always check your own institution's official grading policy for graded coursework.
Your percentage is matched against the grading scale table above, and each letter grade band maps to a fixed GPA point on the standard 4.0 scale.
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