Grades, Percentages and GPA: A Student's Guide
Turn marks into percentages, percentages into GPA and CGPA, and work out exactly what you need on a final exam — the maths every student should know.
Percentage Grade Calculator
Verified formula Updated Jun 2026 Private — runs on your device
Verified formula
Private
Percentage
85.00%
- Marks lost
- 75
For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.
How to use the Percentage Grade Calculator
The Percentage Grade Calculator works out your percentage, along with 1 related figure in an instant. Enter marks obtained and total marks and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.
- Enter the marks obtained.
- Enter the total marks.
- Read off your percentage, together with marks lost — the calculator updates automatically, with no button to press.
Formula
The Percentage Grade Calculator uses the formula:
Percentage = Marks obtained ÷ Total marks × 100
Worked example
For example, with marks obtained of 425 and total marks of 500, the percentage is 85.00%.
| Marks obtained | 425 |
|---|---|
| Total marks | 500 |
| Percentage | 85.00% |
|---|---|
| Marks lost | 75 |
Results are estimates for educational use, not professional advice.
Key terms explained
- Percentage
- A number expressed as a fraction of 100, written with the % sign.
Frequently asked questions
Divide the marks obtained by the total marks and multiply by 100. Scoring 425 out of 500 is 425 ÷ 500 × 100 = 85%.
Add the marks obtained across all subjects and divide by the combined total marks. Enter those two totals to get the overall percentage.
It is simply the total marks minus the marks you obtained — the points that were not scored.
Only if you include bonus marks that exceed the stated total. Normally the obtained marks are at most the total, giving up to 100%.
The Percentage Grade Calculator uses the formula: Percentage = Marks obtained ÷ Total marks × 100. For example, with marks obtained of 425 and total marks of 500, the percentage is 85.00%.
Enter the marks obtained. Enter the total marks. Read off your percentage, together with marks lost — the calculator updates automatically, with no button to press.
Related guides
Percentage Grade Table: Percentage by Marks obtained
Reference table of percentage for Percentage Grade across a range of marks obtained values — exact, engine-computed figures you can read off at a glance.
How to Calculate Percentage Grade: Formula, Steps & Examples
Learn how to calculate Percentage Grade — the formula explained step by step, with worked examples and a free calculator to check your answer.