1. Find Percentage of Marks Instantly
This calculator lets you enter the marks you got, and the total marks you could get, and find your percentage in one click.
You can use it for any subject count (single-subject or aggregate), and this tool also respects the "best of 5" nuance specific to CBSE students, covered in detail in Section 4. Most people who visit us want a single-subject or aggregate percentage, or they want to know how their board calculates the final percentage from several subjects — both options are covered below.
2. How to Calculate Percentage of Marks (Formula)
The formula to calculate percentage from marks is straightforward:
For example, if a student scores 425 out of 500, the percentage is (425 ÷ 500) × 100 = 85%.
This can be applied to find out the percentage for one particular subject, or the aggregate percentage for a set of subjects.
3. Percentage of Marks Calculator — Any Subject Count
To find the aggregate percentage for multiple subjects, add up your marks obtained across all of them, and divide by the total marks across all of them, then multiply by 100.
For example, if a student scores 78, 85, 91, 67, 88 and 72 out of 100 in each of 6 subjects respectively, the percentage is (481 ÷ 600) × 100 = 80.17%.
The calculator on top of this page will do this for any number of subjects (4, 5, 6, or more), so you don't have to do it manually if you have a list of subjects you want to calculate the percentage for.
4. The CBSE "Best of 5" Rule — Why Your Percentage Isn't Always a Simple Average
This section covers the nuance that most percentage-of-marks calculators miss, and could affect your calculation if you're a CBSE Class 10 student.
CBSE Class 10 students typically appear for 6 subjects: 5 are compulsory, and 1 is optional (often IT, AI, or a third language). However, when calculating your percentage, CBSE doesn't consider all 6 subjects — only your best 5. Specifically, they drop the subject you scored the worst in, with the sole proviso that English must always be among your best 5 subjects.
This means that, if you're a CBSE student, the percentage you got isn't merely an average of your 6 subjects, but an average of your best 5. Let's take an example: if a student's 6 subject scores are as follows (out of 100): English 92, Science 90, Social Science 87, Hindi 85, Mathematics 58, and Information Technology 94, then the simple average of the 6 subjects would be 84.3%. But when applying the Best of 5 Rule, the lowest-scoring subject (Mathematics, at 58) is dropped, and the average of IT, English, Science, Social Science and Hindi would be 448 out of 500, or 89.6%.
Worth noting is that this rule only applies to CBSE, specifically for Class 10 (and similarly, for Class 12, English is compulsory, and your best 4 remaining subjects from the rest). CBSE itself has clarified, in guidance addressed to institutions and employers, that CBSE does not release a "percentage" document at all, and it's up to the institution examining your marksheet to calculate percentage themselves from your subject-wise marks using this method.
If you're from a different board, and/or one that doesn't use a "best of 5"-style calculation, your percentage will simply be an aggregate of the subjects you appeared for, as covered in Section 3.
5. 10th, 12th, SSLC and Degree Marksheet Percentage
- Class 10 (CBSE): Best of 5 Rule applies, as above — see Section 4. The total is typically 500, not 600, even if you appeared for 6 subjects.
- Class 12 (CBSE): Similar to Class 10, although English is compulsory, and your best 4 remaining subjects from the rest make up the 5.
- SSLC (Karnataka, Tamil Nadu, etc): Most state SSLC boards simply apply an aggregate of all subjects taken, with no adjustment for the lowest-scoring subject, so Section 2 applies directly to your total marks out of the total.
- Degree / university marksheet: Depends on your specific university and program, but some marksheet systems show a straight percentage of total marks across all semesters, while some show CGPA, which needs to be converted (this is covered on the CGPA to Percentage Calculator page of this site, as it's an entirely different calculation from a marks-based percentage).
6. Marks to Percentage Conversion Table
As a handy quick reference, here's a table showing the percentage corresponding to various marks obtained, out of a 500-mark aggregate (5 subjects × 100):
| Marks Obtained (out of 500) | Percentage |
|---|---|
| 500 | 100% |
| 475 | 95% |
| 450 | 90% |
| 425 | 85% |
| 400 | 80% |
| 375 | 75% |
| 350 | 70% |
| 325 | 65% |
| 300 | 60% |
| 275 | 55% |
| 250 | 50% |
For a different total (out of 600, 400, or any other), use the calculator above, since the ratio will differ for different totals.
7. Percentage to Marks — Going the Other Way
Sometimes you might know the percentage you're shooting for, and want to know how many marks you need to get there. Simply rearrange the formula as follows:
For example, to score 75% out of a 500-mark total: (75 ÷ 100) × 500 = 375 marks needed.
8. Common Mistakes
- Assuming your total is the sum of all the subjects you appeared for: CBSE Class 10 and 12 students specifically need to remember the Best of 5 Rule drops the lowest subject before calculating percentage.
- Confusing marks-based percentage with CGPA-based percentage: If your marksheet shows CGPA, you'll need to use the CGPA to Percentage Calculator on this site instead of this calculator, since the formulae are different.
- Not including practical/internal marks for subjects that had both theory and practical components: Your "total marks" for such a subject should reflect both, not just the theory exam.
9. Who's This For?
Students calculating their percentage from a marksheet, for personal tracking, or for a job / college application, or just because they're curious after their results come out, or parents and teachers double-checking a result. Works for any board — CBSE, ICSE, state boards, and university degree marksheet percentages, with the CBSE-specific Best of 5 nuance covered separately since it's genuinely different from a simple aggregate. No login required.
10. Summary
The basic formula is straightforward — divide marks obtained by total marks, and multiply by 100. The nuance, if you're a CBSE student, is that your official percentage uses your best 5 subjects, not all 6, which is covered in detail in Section 4. The calculator above will give you the correct value instantly for any case.