Marks to Percentage Converter: Full Guide (2025)
Convert marks to percentage or percentage to marks with our free online tool. Works for any total — 100, 500, 600, or custom. Perfect for CBSE, ICSE, state boards, and university exams.
What is Marks to Percentage Conversion?
Percentage = (Marks Obtained / Total Marks) × 100
Marks = (Percentage × Total Marks) / 100
Examples
- 435 out of 500 → (435 / 500) × 100 = 87%
- 78.5% of 600 → (78.5 × 600) / 100 = 471 marks
CBSE Percentage Calculation (Class 10/12)
CBSE uses best 5 subjects for percentage:
- Add marks of top 5 subjects
- Divide by 5 × 100
- Example: 92, 88, 95, 90, 85 → (450 / 500) × 100 = 90%
ICSE Percentage
ICSE includes English + Best 4 from Group II & III:
- Total = English + 4 best subjects
- Percentage = (Total / 500) × 100
University Exams (Semester)
| University | Total Marks | Notes |
|---|---|---|
| Delhi University | 100 per paper | Internal + External |
| Mumbai University | 100 or 80+20 | Varies by course |
| JNTU | 75 (External) + 25 (Internal) | Engineering |
Step-by-Step Guide
- Get marks: From your marksheet.
- Enter total: Usually 100, 500, or 600.
- Convert: Instantly get percentage.
Why Use This Converter?
- Two-way conversion
- Custom totals
- Accurate to 2 decimals
- Mobile-friendly
- No login
Common Questions (FAQ)
How to calculate 10th percentage?
CBSE: (Sum of best 5 subjects / 500) × 100
Is 33% passing?
Yes, in most Indian boards (33% per subject).
How to convert 75/80 to percentage?
(75 / 80) × 100 = 93.75%
Percentage to Grade (CBSE)
| Percentage | Grade |
|---|---|
| 91–100 | A1 |
| 81–90 | A2 |
| 71–80 | B1 |
| 61–70 | B2 |
| 51–60 | C1 |
| 41–50 | C2 |
| 33–40 | D |
| 21–32 | E1 |
| 0–20 | E2 |
Tips for Higher Percentage
- Focus on high-scoring subjects
- Use our Final Grade Calculator
- Aim for 90+ in internals
Conclusion
Whether you're a student, parent, or teacher, our marks to percentage converter gives accurate results in seconds. Try it now!
Related: Grade Point to Marks | GPA to %