What the Marks Percentage Calculator does
This calculator turns exam marks into a percentage: enter the marks you got and the maximum for each subject, and it shows the overall percentage, each subject's percentage, the best-of-five figure, a grade or division under the convention you choose, and which subjects are below the pass mark. It also converts a CGPA to a percentage and back with a formula you can see and change.
The basic formula is simple - marks obtained divided by maximum marks, times 100 - but the details trip people up: papers with different maximum marks, which subjects count in a best-of-five, and boards that convert CGPA differently. Each of those is handled openly here, and nothing you type leaves your browser.
How to use it
- Type each subject's marks and the maximum it was out of. Names are optional; rows you leave blank are ignored, and "Add a subject" gives you more rows.
- Choose the grading convention: Indian division bands, US letter grades or plain pass/fail, and set the pass mark per subject (33% by default, as CBSE uses).
- Set how many subjects the best-of figure uses - five by default - and, if your board requires it, choose a subject that must always be included.
- Read the overall percentage at the top, then the best-of-five, the grade or division and the subject-by-subject bars and table.
- Open "CGPA to percentage" if your result is a grade point average. Copy, download or print the summary when you are done.
Reading the results
The overall percentage is total marks over total maximum. When every paper is out of the same number this equals the average of the subject percentages; when maxima differ it does not, and the note shows both so you can use the one your form asks for.
The best-of-five figure keeps the five highest subject percentages (with any compulsory subject forced in) and adds up their marks. Subjects left out are shown in grey in the chart and marked in the table.
Divisions and letter grades are conventions, not universal rules. Under the Indian division bands used here, failing any one subject means the overall result is a fail even when the total is high - which is how most boards treat it.
A CGPA converted with x 9.5 is an approximation published by CBSE for its own grade points. A university's transcript formula always takes precedence.
Worked example: six subjects out of 100, best of five
Marks: English 78, Maths 85, Science 92, Social Science 67, Hindi 88 and Information Technology 74, each out of 100. The total is 78 + 85 + 92 + 67 + 88 + 74 = 484 out of 600, so the percentage is 484 / 600 x 100 = 80.67%.
For the best of five, drop the lowest subject, Social Science at 67: 484 - 67 = 417 out of 500 = 83.40%. If Social Science had to be included, the next lowest, IT at 74, would be dropped instead: 410 / 500 = 82.00%.
Every subject is above the 33% pass mark, and 80.67% is above 75%, so under the Indian division bands this is a first division with distinction. Under US letter grades it would be a B (80 to 89.99).
A CGPA of 8.6 converted with the CBSE multiplier is 8.6 x 9.5 = 81.7%. Going the other way, 80.67% / 9.5 = a CGPA of about 8.49.
Formulas and scoring rules
- Subject percentage
% = marks obtained / maximum marks x 100- Overall percentage
% = (sum of marks obtained) / (sum of maximum marks) x 100Not the average of subject percentages when maxima differ; both are shown in that case.- Best of N
best % = sum of marks in the N highest-percentage subjects / sum of their maxima x 100A forced subject takes one of the N places; ties keep the order you entered.- Indian division bands
distinction >= 75%, first >= 60%, second >= 50%, third >= pass markAny subject below the pass mark makes the result a fail. Some universities use 45% for second division or 40% to pass - change the pass mark to match.- US letter grade
A >= 90, B >= 80, C >= 70, D >= 60, F < 60- CGPA conversion
% = CGPA x multiplier + offset; CGPA = (% - offset) / multiplierMultiplier 9.5 and offset 0 is the CBSE convention. Percentages are displayed to 2 decimal places.
Limitations: what the result does not prove
- Grading conventions are board-specific and change over time. CBSE, for instance, has said it does not award an overall division or distinction, and admission offices may set their own rules for which subjects count.
- Best-of-five rules differ: some require a language, some exclude additional subjects or vocational papers. Use "Always include" and leave out subjects that do not count.
- The CGPA multiplier is a convention, not an exact inverse. Grade points come from grade bands, so converting back to a percentage cannot recover your actual marks.
- Internal assessment, practicals and grace marks are only included if you enter them as part of the marks and maximum.
Privacy: where your data goes
Everything you paste, type or drop is processed in this browser tab. It is not uploaded, logged, stored or sent to analytics. Session recording and tag-manager scripts are switched off on this page.
Standards and sources
- Central Board of Secondary Education (CBSE) - official site
- University Grants Commission (UGC), India
Frequently asked questions
How do I calculate the percentage of my marks?
Add up the marks you got, add up the maximum marks, divide the first by the second and multiply by 100. For 484 out of 600 that is 484 / 600 x 100 = 80.67%. For a single paper, 42 out of 60 is 42 / 60 x 100 = 70%.
How is the best of five percentage calculated?
Take the five subjects with the highest percentages, add their marks, and divide by the total of their maximum marks. With six subjects out of 100 that simply means dropping the lowest one and dividing the rest by 500. If your board makes a language compulsory, include it first and pick the other four from the highest.
How do I convert CGPA to percentage?
Under the CBSE convention, multiply the CGPA by 9.5: a CGPA of 8.6 is about 81.7%. Many universities use a different formula - for example a multiplier with an offset - so check your marksheet or university rules and enter their multiplier and offset in the converter.
How do I calculate percentage when subjects have different maximum marks?
Add the marks and the maxima separately, then divide. 45/50, 70/80 and 30/50 give 145 out of 180 = 80.56%. Averaging the three subject percentages (90%, 87.5% and 60%) would give 79.17% instead, which is a different measure; the calculator shows both.
What percentage is first division?
In the convention most Indian universities and many state boards use, first division is 60% or more, second division 50% to 59.99%, and third division from the pass mark up to 49.99%, with 75% or more often called distinction. The exact cut-offs differ by institution, so check your own rules.
Do I fail overall if I fail one subject?
Usually yes. Most boards require a pass in each subject, so a high total does not make up for one paper below the pass mark - the calculator shows the result as a fail and lists the subject. Compartment or supplementary exam rules then decide what happens next.
What marks do I need to get 75% across six subjects out of 100?
75% of 600 is 450, so your six marks must add up to 450 or more - an average of 75 per subject. Enter the marks you already have and try values for the rest to see how much each remaining paper needs.
Last reviewed by the A2Z.Tools team against the sources listed above.
