About the Marks Percentage Calculator
What is the Marks Percentage Calculator?
This marks percentage calculator converts your marks into a percentage and shows the CBSE-style grade band.
It also tells you how many more marks you would have needed to reach the next 10% milestone.
How to use the Marks Percentage Calculator
- Marks Obtained (sample: 420)
- Maximum Marks (sample: 500)
- Press Calculate Percentage (results also refresh as you type). The result card shows the Percentage, along with Grade band (CBSE-style), Marks lost, Marks needed for 90% and Equivalent CGPA (÷ 9.5).
Formula used
Percentage = Marks obtained ÷ Maximum marks × 100
For board results, many admissions use the best-of-five percentage instead.
Worked example
These are the sample values already filled in the calculator above, and the result it returns for them:
| Input | Sample value |
|---|---|
| Marks Obtained | 420 |
| Maximum Marks | 500 |
| Result | Value |
|---|---|
| Percentage | 84% |
| Grade band (CBSE-style) | A2 |
| Marks lost | 80 |
| Marks needed for 90% | 30 |
| Equivalent CGPA (÷ 9.5) | 8.84 |
CBSE grade bands
| CBSE grade | Marks (approx.) |
|---|---|
| A1 | 91–100 |
| A2 | 81–90 |
| B1 | 71–80 |
| B2 | 61–70 |
| C1 | 51–60 |
| C2 | 41–50 |
| D | 33–40 |
| E | Below 33 (needs improvement) |
CBSE actually awards grades by rank among passing students (for example, A1 to the top one-eighth), so marks bands are approximate.
Tips for using the Marks Percentage Calculator
- Include practical and internal marks if your result counts them.
- Keep two decimal places when forms ask for percentage.