How to calculate percentage of marks
Percentage = Marks obtained ÷ Total maximum marks × 100
If you scored 452 out of 500, your percentage is 452 ÷ 500 × 100 = 90.4%. For several subjects, add up the marks obtained across all subjects and divide by the sum of the maximum marks, not by the number of subjects. Dividing by the number of subjects only works when every subject is out of 100.
Percentage of marks across 5 or 6 subjects
Six subjects out of 100 each with marks 92, 85, 78, 88, 95 and 70 total 508 out of 600, so the percentage is 508 ÷ 600 × 100 = 84.67%. If one subject is out of 50, say a practical with 42 marks, the total becomes 550 maximum and the calculation changes to (466 + 42) ÷ 550; the subject-wise mode handles mixed maxima automatically.
What “best of 5” means
CBSE and several state boards report a percentage based on your five best subjects, typically one language plus four others, when you have taken six. The calculator drops the lowest-scoring subject when “Best of 5” is on and shows which one it dropped. Rules on which subjects may be dropped vary by board and by the college you apply to, so treat this as the common pattern rather than a guarantee.
Marks needed for a target percentage
Marks needed = Target % × Total marks ÷ 100
To score 75% out of 600 you need 450 marks. If you already have 310 from four papers, you need 140 across the remaining two. The reverse mode computes both numbers.
Percentage bands used by Indian boards
| Percentage | Common label |
|---|---|
| 90 and above | Outstanding / A1 band |
| 75 to 89.99 | Distinction |
| 60 to 74.99 | First division |
| 45 to 59.99 | Second division |
| 33 to 44.99 | Pass / third division |
Pass marks are 33% for CBSE and most state boards and 35% or 40% at many universities. Labels differ between boards; the calculator uses the pattern above as a guide only.
Common mistakes
- Averaging percentages instead of marks when subjects have different maximum marks.
- Including additional or optional subjects that your board excludes from the aggregate.
- Rounding each subject first. Keep raw marks and round only the final percentage.
Common questions
What percentage is 450 out of 500?
90%. Divide 450 by 500 and multiply by 100.
How do I convert a percentage to CGPA?
Divide by 9.5 for the CBSE convention, or use your university’s formula in the CGPA to percentage converter, which works in both directions.
Does this calculate grades too?
For letter grades and weighted course grades, use the grade calculator. To find the score you need on a final exam, use the final grade calculator.