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CGPA to Percentage

Convert a CGPA into a percentage or a percentage back into CGPA, using the multiplier your board or university applies.

The formula

Most Indian boards and universities convert with a single multiplier:

Percentage = CGPA × 9.5

So a CGPA of 8.5 becomes 80.75%. Going the other way, divide instead: 80.75 ÷ 9.5 gives 8.5 back.

The 9.5 comes from CBSE, which derived it from the average performance of students across several years. It is a convention rather than a law of nature, which is why the multiplier is editable here.

Not every institution uses 9.5

Some universities use 10, some subtract a constant, and some publish a conversion table instead of a formula. VTU, Anna University and several autonomous colleges each have their own rule.

Check the rule your own institution publishes before quoting a converted figure on an application. If they give a multiplier, put it in the box and the conversion follows it. If they give a table, the table wins over any formula.

When you need the conversion

Frequently Asked Questions

Yes — free, no sign-up, and it converts in both directions.
Percentage = CGPA × 9.5. A CGPA of 8.5 gives 80.75%. Reverse it by dividing: percentage ÷ 9.5.
CBSE derived it from the average marks of high-performing students across several years. It is a convention, not a physical constant, which is why the multiplier can be changed here.
Not necessarily. Several use 10, subtract a constant, or publish a conversion table instead. Check the rule your institution publishes before quoting a converted figure — and if they give a table, use the table.
Yes. Everything runs in your browser after the page loads - nothing you type is sent anywhere. It is the same calculation our mobile app uses, compiled to run on the web, so the two can never disagree with each other.
Yes. Switch the mode and enter the percentage; it divides by the same multiplier.

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