CGPA to Percentage Calculator
There is no single universal formula for this conversion — it varies by institution and country. The figures below are approximations. If the exact percentage matters (for a transcript, an application, or a certificate), check your own institution's published conversion rule first.
How it works
The generic linear conversion reads your CGPA as a fraction of your scale's maximum and multiplies by 100 — it works for a 4.0, 5.0 or 10.0 scale alike, and makes no claim beyond what the number is out of.
The ×9.5 rule shown alongside it (only on a 10-point scale) is a specific convention some Indian universities, CBSE among them, publish for converting CGPA to a percentage. It is one institution's rule, not a mathematical fact — plenty of institutions on the very same 10-point scale never adopted it, which is why the two figures here can and do disagree for the same CGPA.
Working with a plain percentage already? The percentage calculator covers everyday percent math.
Frequently asked questions
Is there one official CGPA-to-percentage formula?
No. There is no universal conversion — it is a matter of institutional policy, not arithmetic. Some Indian universities publish a fixed ×9.5 rule for a 10-point scale; most others do not. If your certificate or transcript needs an exact figure, check what your institution actually publishes.
Why does this calculator show two different numbers?
The generic linear reading treats your CGPA as a fraction of the maximum on your scale and works for any scale (4.0, 5.0, 10.0). The ×9.5 rule is one specific convention some 10-point-scale institutions use instead. They deliberately disagree — 8.5 works out to 85% one way and 80.75% the other — because they answer different questions.
Which one should I use?
Whichever your institution tells you to. Neither is more "correct" in general; the ×9.5 rule is only right if your institution actually adopted it. Use the generic figure as a reasonable approximation when no official rule applies to you.