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Marks percentage calculator, with CGPA

Q: How do I turn that percentage into a CGPA?

Using CBSE's own 10-point scale, divide the percentage by 9.5. The example above, at 81.20 per cent, comes out to 8.55. That division is CBSE's own convention, not a rule every board follows, so it does not apply to ICSE, to state boards, or to a school that sets its own grading.

Q: Is this marks percentage calculator free?

Yes, entirely. No account is needed, nothing to download, no trial period, no card details. Whether or not you ever book a class with us, it costs nothing.

Q: Are the marks I type in sent to Skoolur, or kept anywhere at all?

No. Every step of the calculation - each addition, the division for the percentage, and the CGPA conversion - happens as arithmetic inside your own browser. Nothing gets sent to us or anyone else, nothing is stored, and no analytics event logs what was entered. Close the tab and every number disappears at once.

This free marks percentage calculator adds up marks obtained and marks total across every subject you enter and instantly shows the overall percentage - no report card maths done by hand, no spreadsheet, and nothing to sign up for. Add a row per subject, remove one you do not need, and the total updates as you type.

Underneath it sits a second, smaller tool: a two-way converter between CBSE’s 10-point CGPA and an indicative percentage, using the exact formula CBSE itself has published - CGPA × 9.5. We say plainly where that formula does and does not apply, because a confident wrong number is worse than an honest caveat. If the conversion is all you came for, the CGPA to percentage calculator and the percentage to CGPA calculator each have a page of their own.

The short version

Working out a marks percentage is simple: total up the marks obtained across every subject, total up the marks each of those subjects was out of, divide the first sum by the second, then multiply by 100.
Worked example: five subjects scoring 92, 88, 76, 81 and 69 out of 100 each add up to 406 out of 500, and 406 ÷ 500 × 100 gives 81.20%.
You can enter as many subjects as you need. Each one can have its own total, and the result updates as you type.
On top of that, it turns CBSE's 10-point CGPA into an indicative percentage with CBSE's own published formula, CGPA × 9.5, and states clearly that this formula belongs to CBSE alone, not to every board.
The tool flags marks that exceed the stated total, and it flags a total of zero too, instead of letting either one quietly break the maths.
Your browser does all the work here. No mark, subject name or result ever gets sent anywhere or saved.

Enter marks by subject

Add a row for every subject. Leave the name blank if you would rather not type it - the total works either way.

Subject 1 name
Marks obtained, subject 1
Total marks, subject 1
Subject 2 name
Marks obtained, subject 2
Total marks, subject 2
Subject 3 name
Marks obtained, subject 3
Total marks, subject 3

Everything above runs on your own device. No mark is sent anywhere, saved, or visible to anyone but you.

Enter marks obtained and a total for at least one subject to see the result.

Calculated as (total obtained ÷ total marks) × 100, rounded to two decimals.

CGPA and percentage - the CBSE indicative formula

CBSE has publicised 9.5 × CGPA = indicative percentage for converting its own 10-point CGPA. It is not a universal rule - ICSE, state boards and individual schools do not all use it, and even CBSE itself calls the result indicative rather than official for every purpose. Check with the school or board before relying on the figure below for anything formal.

CGPA (0 to 10)

Enter a CGPA between 0 and 10.

Percentage (0 to 100)

Enter a percentage between 0 and 100.

Worked example

How to calculate percentage of marks

One Class 10 report card, done by hand. Check the calculator against it, or just follow the four steps on your own marks.

Example marks for five subjects, each out of 100
Subject	Marks obtained	Out of
Maths	92	100
Science	88	100
English	76	100
Social Science	81	100
Hindi	69	100
Total	406	500

The formula

Percentage = (total obtained ÷ total marks) × 100

Total up the marks scoredAdd the marks scored in every subject. In the example: 92 + 88 + 76 + 81 + 69 = 406.
Add up the total marksAdd the maximum marks for those same subjects. 5 subjects out of 100 each gives 500.
Divide the first by the secondDivide the marks obtained by the total marks: 406 ÷ 500 = 0.812.
Multiply by 100 and roundMultiply that by 100 for the percentage, and round to two decimal places: 0.812 × 100 = 81.20%.

Result: 81.20%

On CBSE’s 10-point scale that is 81.20 ÷ 9.5 = 8.55 CGPA - CBSE’s own convention, not a universal one.

Reading the result

What the numbers actually mean

A report card percentage looks like a single fact, but it is really a small piece of arithmetic that is easy to get subtly wrong by hand - especially once a subject has a different total to the rest, or a mark gets transcribed against the wrong maximum. This calculator does exactly one thing well: it sums what you typed, correctly, and shows the working rather than hiding it.

The formula behind the percentage

Add every subject’s marks obtained together. Add every subject’s total marks together. Divide the first by the second, multiply by 100, and round to two decimal places. That is the whole calculation, and it is the same one schools and boards use for an aggregate percentage across subjects with equal weighting. If your school computes a best-of-five percentage, or weights one subject more heavily than another, this tool will not replicate that - it adds exactly what you enter, in the order you enter it, with no subject dropped or weighted differently unless you leave it out yourself.

Where CGPA × 9.5 comes from, and where it stops applying

CBSE introduced its 10-point Cumulative Grade Point Average system some years ago, and alongside it published a simple conversion for anyone who needs an approximate percentage from a CGPA figure: multiply by 9.5. It is genuinely CBSE’s own formula, not something invented for this page, and it is the number you will see quoted almost everywhere. The part that gets lost in most quick answers online is CBSE’s own qualifier - the result is indicative, used for general comparison, not a substitute for an official transcript or a board-issued equivalence certificate where one is specifically required.

It is also strictly a CBSE formula. ICSE does not use a CGPA scale in the same way, state boards mostly report a direct percentage rather than a grade point average, and individual schools sometimes build their own internal grading entirely. If a form or an institution asks specifically for a percentage rather than a CGPA, and the stakes are real - an admission cut-off, a scholarship threshold - treat this conversion as a starting estimate and confirm the exact requirement with that institution.

Why there is no grade-boundary table on this page

A percentage-to-grade table (A1, A2, B1 and so on) is the one thing a tool like this is often expected to show, and it is the one thing we chose to leave out. CBSE’s grading bands have shifted over different years and schemes, and printing a table without being certain it reflects the current scheme would put a specific, checkable wrong answer in front of a parent - worse than simply not providing it. What this calculator computes is what it can compute exactly: an arithmetic total, a percentage, and CBSE’s own published CGPA formula. Nothing here is a guess dressed up as a fact.

What “marks obtained above the total” usually means

This calculator flags rather than blocks a row where marks obtained is higher than the total entered for that subject. Most of the time that flag catches a typo - a total of 25 typed where 250 was meant, say. Occasionally it is genuine: some boards apply moderation or award a small number of bonus marks that push a result above the nominal maximum. Rather than silently rejecting the entry or silently accepting it without comment, the row is marked so you can look at it once and decide, and the total is still computed either way.

Privacy, stated plainly

A report card is not a casual thing to type into a website, and this tool is built with that in mind. There is no server call anywhere in the calculation - every add, divide and round happens in your device’s own browser using ordinary JavaScript, the same way a spreadsheet formula runs on your machine and not on someone else’s server. Nothing is stored between visits, no cookie remembers a subject name, and no analytics event fires when you type a mark. That matches what our privacy policy promises across the whole site, not just here.

Before you rely on the number

This percentage is a plain, equal-weighted average - check whether your school or board weights subjects differently before relying on it.
CGPA × 9.5 is CBSE's own formula, labelled indicative - check with the institution when the outcome actually matters.
If a row gets flagged - marks entered above the total, or a field left blank - look at it again before writing the total down anywhere official.
Nothing you type here gets saved - jot the final number down yourself if you will need it again later.

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Questions parents ask

About the marks percentage calculator

How do I calculate the percentage of marks?

Total the marks obtained across every subject, total the marks those subjects were out of, divide the first figure by the second, then multiply by 100. Take, say, 92 in Maths, 88 in Science, 76 in English, 81 in Social Science and 69 in Hindi, each marked out of 100: that gives 406 out of 500. So 406 ÷ 500 = 0.812, and 0.812 × 100 = 81.20 per cent. Subjects need not share the same maximum - simply add up whatever total each one was actually marked against.

How do I turn that percentage into a CGPA?

On CBSE's own 10-point scale, divide the percentage by 9.5. The 81.20 per cent in the example above becomes 8.55. That is CBSE's convention rather than a universal rule, so it does not carry across to ICSE, to state boards, or to a school running its own grading. There is a dedicated percentage to CGPA calculator and a CGPA to percentage calculator if that is the conversion you came for.

Is this marks percentage calculator free?

Yes, entirely free. No account to set up, nothing to download, no trial period and no card details needed. It costs nothing whether or not you go on to book a class with us.

Do we need an account to use it?

No. There is no sign-up and no password to remember. Open the page, enter the marks, read off the result, and close the tab whenever you like.

Are the marks I type in sent to Skoolur, or kept anywhere at all?

No. Every step of the calculation - the addition, the division that gives the percentage, and the CGPA conversion - happens as arithmetic inside your own browser. Nothing goes to us or to anyone else, nothing is saved, and no analytics event logs what was typed. Close the tab and every number disappears instantly, exactly as our privacy policy promises.

Does it work if my subjects have different total marks?

Yes - in fact that is the normal case. Enter the actual total for each subject - 80 where there is an internal component, 100 for another - and the calculator totals the obtained column and the total column on their own before dividing. It never treats every subject as out of 100. What it will not do is give one subject more weight than another, or drop your weakest mark for a best-of-five: it simply adds up exactly what you enter, weighting each equally, and skips only the rows you leave empty yourself.

Is multiplying CGPA by 9.5 the official method for converting CGPA into a percentage?

This is CBSE's own published formula for its 10-point CGPA scale, and it happens to be the one used and quoted most widely. But it belongs to CBSE specifically - CBSE itself calls it indicative rather than official for every purpose, and ICSE, state boards and plenty of individual schools use different scales, or no fixed scale at all. Wherever the percentage really counts - a college application, a scholarship, an eligibility cut-off - confirm the exact requirement with that institution rather than leaning on this conversion alone.

Why doesn't the calculator show a grade like A1 or A2?

CBSE's grade boundaries have shifted over the years and vary by scheme, so we were unwilling to publish a boundary table we could not currently confirm. A wrong grade sitting beside a correct percentage is worse than no grade at all, so this tool limits itself to what it can compute with certainty: the total, the percentage, and the published CGPA formula.

What happens if the marks I enter are higher than the total?

We flag the row so you can look at it, but we still count it in the total instead of quietly throwing it out. A small number of boards do sometimes award marks above the stated maximum through moderation, and dropping the row without a word would surprise you far more than a flag does.

What happens if the total marks for a subject are left blank, or entered as 0?

That subject gets dropped from the total instead of being allowed to break the division. Since a total of zero cannot be divided by, the calculator flags it and leaves it out, rather than returning a nonsense result such as Infinity.

Can I use this for just one subject rather than a whole report card?

Yes. Remove the extra rows until only one remains, or just leave the rest blank - a blank row is ignored entirely and has no effect on the total.

Does it work on a phone?

Yes. The boxes are sized to tap with a thumb, the number keyboard pops up automatically for the mark fields, and it runs in any modern browser with nothing to install.

The pages parents most often open straight after this one.

CGPA to percentage calculator
Convert a CBSE 10-point CGPA into a percentage on its own page, with the working shown in full.
Percentage to CGPA calculator
The reverse of that same conversion, for when a form asks for a CGPA instead.
Mental maths sprint
Fast arithmetic practice for Class 1 to 10, handy once the report card has been put away.
Maths worksheet generator
Print out practice sheets for Class 1 to 5, each one with a separate answer key.
Maths tuition, Class 1 to 10
Useful when a percentage points to a gap genuinely worth closing before the next exam.
Online tuition for Class 10
The year when CGPA and percentage start to matter for board results and college admissions.
Online tuition fees
Every plan and its price is out in the open, with no form to fill in before you can see them.

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Answered by a real teacher

Percentage is fine. A subject still isn't.

If the same subject keeps pulling the total down term after term, drop us a message. We will tell you plainly what is actually going wrong, rather than sending back more practice sheets.

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