Converting a percentage into a CGPA comes up constantly for students applying internationally, but there's an important catch: there's no single universal formula.
Why There's No Universal Formula
Every university and credential evaluation service uses its own conversion table. A common simplified approximation divides percentage by a fixed factor (like dividing by 9.5 for some Indian university conventions, or 25 for a rough 4.0-scale estimate), but these approximations don't match every institution's actual formula and can be meaningfully inaccurate.
The Reliable Approach
Whenever possible, use the specific conversion table published by the institution or service you're submitting your record to — many universities and credential evaluators (like WES) publish their own official tables. This gives a far more accurate conversion than a generic online formula.
A Rough General Estimate
As a loose approximation on a 4.0 scale: 90%+ often corresponds to roughly 3.7-4.0, 80-89% to roughly 3.3-3.7, 70-79% to roughly 2.7-3.3, and below 70% trails off from there — but treat this only as a rough sanity check, not a substitute for an official conversion table.
Conclusion
If you know the specific grade scale or conversion table you need, our free GPA & CGPA Calculator lets you set up that exact scale and calculate accordingly, rather than relying on a generic approximation.