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GPA / CGPA Converter

Convert between a 10-point CGPA, a percentage score, and the US 4.0 GPA scale.

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About the GPA / CGPA Converter

Converts between a 10-point CGPA, a percentage score, and the US 4.0 GPA scale, using the conversion formulas most commonly cited by universities and credential-reference sites — distinct from this site's GPA Calculator, which computes a weighted 4.0-scale GPA from a list of letter-grade courses.

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How to use it
  1. Choose which score you have: CGPA, percentage, or 4.0 GPA.
  2. Enter that score.
  3. Read the equivalent values on the other two scales.
Formula
Percentage = CGPA × 9.5 (the CBSE convention). GPA (4.0 scale) = CGPA ÷ 2.5, equivalently Percentage ÷ 25.
Worked example

A CGPA of 8.2 converts to about 77.9% and a 3.28 GPA on the 4.0 scale. A 90% score converts to about 9.47 CGPA and a 3.6 GPA.

Sample CGPA / Percentage / GPA Conversions (CBSE formula)
Sample CGPA / Percentage / GPA Conversions (CBSE formula)
CGPAPercentageGPA (4.0 scale)
10.095.0%4.00
9.085.5%3.60
8.076.0%3.20
7.066.5%2.80
6.057.0%2.40
5.047.5%2.00
Interpreting your result

There is no single official, universally used formula for converting between these three scales — different universities, boards, and countries define their own rules. For an official conversion needed for a transcript, visa, or job application, check with your specific institution's registrar or use a formal credential evaluation service such as WES.

Recommendations
  • These formulas are independent approximations, not one internally consistent system.
  • The CGPA × 9.5 rule is the CBSE (India) convention; other boards may use a different multiplier.
  • If you're applying abroad, ask the receiving institution which conversion method they use.
Frequently asked questions
No — it's the CBSE (India) convention and is widely cited, but not every board or university uses it.