Many forms ask for a percentage, but your marksheet shows a CGPA or SGPA. There is no single worldwide formula, so the right conversion is the one your own board or university publishes.
CGPA and SGPA in short
- SGPA is your grade point average for one semester.
- CGPA is the cumulative average across all semesters so far.
CGPA on a 10-point scale is the most common in India.
Common conversion rules
- CBSE: percentage = CGPA x 9.5.
- Some universities use CGPA x 10.
- Others use CGPA x 10 minus a fixed number, or a formula with a different multiplier and an added constant.
- A few use grade slabs, where each CGPA range maps to a percentage range.
Example with the CBSE rule: a CGPA of 8.4 gives 8.4 x 9.5 = 79.8%. With a rule of CGPA x 10, the same 8.4 gives 84%. That is why you should not pick a formula at random.
How to find your rule
- Look at the back of your marksheet or degree certificate for a conversion note.
- Check your university’s website for a notification or circular.
- Ask the exam office for a written conversion certificate if a form needs one.
Using the calculator
Choose your board or university in the CGPA to percentage calculator, enter your CGPA and read the result. If your college uses a different formula, choose your own rule and type the multiplier and any extra number from the circular.
To go the other way, use the percentage to CGPA calculator. If you only have semester scores, the SGPA to CGPA calculator averages them first.
Tips for forms and applications
- Use the official rule, and attach the circular if there is space for proof.
- Round as the form asks. Some want two decimals, some a whole number.
- Do not round up to reach a cut-off. If your result is 59.8%, write 59.8%.
- If a form allows a CGPA entry, enter the CGPA as printed instead of converting it.
Why results differ
A conversion is a convention, not a measurement of how well you did. Employers and colleges usually accept the university’s published rule. If you are unsure which they prefer, ask them.
The calculation runs in your browser and nothing you type is uploaded.