How to Calculate Percentage of Marks – Formula, Examples & Grade Chart
A simple, step-by-step guide to converting exam marks to percentage with real examples like 438 out of 500, grade reference chart, and a free online calculator.
Published: May 3, 2026 | CalcVerse
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That is all there is to it. Divide the marks you scored by the maximum possible marks, then multiply by 100 to get a percentage.
Step-by-Step Example
Question: What is 438 out of 500 as a percentage?
- Marks Obtained = 438
- Total Marks = 500
- Divide: 438 ÷ 500 = 0.876
- Multiply by 100: 0.876 × 100 = 87.6%
So 438 out of 500 is 87.6% — typically a Distinction in most Indian boards.
Popular Mark vs Percentage Examples
| Marks / Total | Percentage | Grade / Class |
|---|---|---|
| 438 / 500 | 87.6% | Distinction |
| 450 / 500 | 90% | Distinction |
| 475 / 500 | 95% | Distinction |
| 380 / 500 | 76% | First Class |
| 350 / 500 | 70% | First Class |
| 300 / 500 | 60% | First Class |
| 250 / 500 | 50% | Second Class |
| 292 / 400 | 73% | First Class |
| 360 / 400 | 90% | Distinction |
| 540 / 600 | 90% | Distinction |
Grade / Class Chart (Indian Standard)
| Percentage Range | Class / Grade |
|---|---|
| 75% and above | Distinction |
| 60% – 74.99% | First Class |
| 50% – 59.99% | Second Class |
| 40% – 49.99% | Third Class / Pass |
| Below 40% | Fail (in most boards) |
Note: Some boards use different cutoffs. Maharashtra SSC/HSC, CBSE, and ICSE each have their own grade scale. Check your specific board's guidelines.
Marks Percentage on Different Total Marks
The formula works the same regardless of the total. Here are quick examples on different totals:
- Out of 600 (SSC/HSC 6 subjects at 100 each): 480/600 = 80%
- Out of 500 (5-subject board): 438/500 = 87.6%
- Out of 400 (4-subject semester): 320/400 = 80%
- Out of 300 (3-subject term): 240/300 = 80%
- Out of 100 (single subject): 87/100 = 87%
Frequently Asked Questions
What is 438 out of 500 as a percentage?
438 out of 500 is 87.6%. Formula: (438 ÷ 500) × 100 = 87.6%.
What is 450 out of 500 percentage?
450 out of 500 is 90%. Formula: (450 ÷ 500) × 100 = 90%.
How do I calculate aggregate percentage?
For multiple subjects, add up all marks obtained across subjects, add up all total marks, then apply the formula: Total Obtained ÷ Total Maximum × 100. For example: scored 85, 90, 78, 92, 88 out of 100 each → Total = 433/500 = 86.6%.
Is 75% a Distinction?
In most Indian boards and universities, 75% and above is classified as Distinction. Some universities set the Distinction threshold at 70%.
How do I convert CGPA to percentage for CBSE?
CBSE recommends the formula: Percentage = CGPA × 9.5. For example, CGPA 9.0 × 9.5 = 85.5%.