CGPA to Percentage Calculator

Every rule the tool lists is a straight line. Some subtract a small number from the CGPA first, and all of them multiply by a fixed number:

Here m is the multiplier and c is the number taken off first, which is 0 for most rules. These are the rules the tool knows, each copied from the body's own document:

To go the other way, divide the percentage by m and add c back:

For a scale with no published rule, the simple proportion divides by the top of the scale and multiplies by 100. On a 4-point scale, 3.5 becomes 87.5%. That is plain arithmetic, not anyone's official rule.

Ananya converts her CBSE certificate

Ananya's Class 10 certificate shows a CGPA of 8.4. CBSE's rule multiplies by 9.5, so she writes 79.8% on her college form. A perfect 10 would be 95% under this rule, not 100%. CBSE calls the result an indicative percentage, so the form may also want the CGPA itself.

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Rahul checks a JNTUH grade card against a job form

Rahul studied B.Tech under JNTUH's R-25 rules and has a CGPA of 7.2. His rule takes 0.5 off first: (7.2 − 0.5) × 10 = 67%. JNTUH places 7.2 in the First Class band. The job form asks for at least 60%, which under his rule needs a CGPA of 6.5.

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Two VTU graduates with the same 8.0

VTU changed its rule between schemes. A student from the 2018 scheme uses (CGPA − 0.75) × 10, so 8.0 is 72.5%. A student from the 2022 scheme simply multiplies by 10 and gets 80%, which the 2022 regulations class as First Class with Distinction. Same university, same CGPA, a gap of several points.

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The rule printed on your grade card, or named on the form, always wins over anything here. If neither names one, ask your university's examination office which rule applies to your year and scheme.

Three of the rules also set classes or divisions. VTU's 2022 rules and the University of Delhi go by the percentage. JNTUH goes by the CGPA, and its distinction also needs every course passed at the first appearance and no detention.

The University of Delhi's 2019 notification says its grade certificates show the conversion formula, not a percentage. So a converted figure is something you work out and state, with the rule beside it.

Some universities are missing on purpose. Mumbai, GTU, AKTU and AICTE formulas are quoted widely, but we could not open their own documents, and the copies on other sites disagree with each other. If your university publishes a rule, choose "Your university's rule" and enter its two numbers.

US colleges have no standard way to turn a 4.0 GPA into a percentage. The simple proportion gives a rough figure only.

• Using 9.5 for every university. The 9.5 rule is CBSE's and the University of Delhi's. Under Anna University's rule, Ananya's 8.4 would be 84%, not 79.8%.
• Mixing up schemes. VTU's old formula and its 2022 formula give 72.5% and 80% for the same 8.0. Check which scheme your grade card was issued under.
• Rounding up to reach a cut-off. A JNTUH CGPA of 6.46 is 59.6%. With no decimal places that shows as 60%, but it is below a 60% minimum. Give the figure to two decimal places unless the form says otherwise.
• "Fixing" a 95% top. A perfect 10 is 95% under CBSE's rule. That is the rule working as written, so do not scale it up to 100%.
• Converting one semester when the form wants the whole course. SGPA covers one semester and CGPA covers all of them. Convert the CGPA unless the form asks for each semester.