CGPA to Percentage Calculator

The formula

On the 10-point scale, the standard conversion is:

Percentage = CGPA × 9.5  and  CGPA = Percentage ÷ 9.5

The two are exact inverses, so a number converted one way and back returns to where it started. A CGPA of 8.5 gives 80.75%, and 80.75% gives 8.5 again.

Where the 9.5 comes from

The multiplier is not arbitrary, and it is not a rounded-down version of 10. CBSE published it in Circular No. 24/2010 after looking at real results data.

Students awarded an A1 grade had scored between 91 and 100 marks, and their average came out at roughly 95. A1 carries a grade point of 10. Dividing the average mark by the grade point — 95 ÷ 10 — gives 9.5, and that ratio is then applied across the whole scale.

This is why multiplying by 10 is wrong even though it is easier arithmetic. A perfect 10.0 CGPA converts to 95%, not 100%, because the grade point of 10 was awarded to a band of students averaging 95 marks — not to a room full of students who all scored full marks.

Quick reference

Your university may not use ×9.5

This is the single most common mistake, and it can cost you an eligibility cutoff. The ×9.5 rule is a CBSE school-level formula. Indian universities set their own conversion in their examination regulations, and several widely used shapes exist:

• CGPA × 10 — the simplest, used by a number of technical universities.
• (CGPA − 0.5) × 10 or (CGPA − 0.75) × 10 — a subtraction first, which lowers the result by 5 to 7.5 points.
• A linear formula such as CGPA × 7.1 + 11, which is not a simple multiple at all.

The gap between these is large enough to matter. A CGPA of 7.5 becomes 75% under ×10, 70% under (CGPA − 0.5) × 10, and 64.25% under CGPA × 7.1 + 11 — a spread of nearly eleven points on the same transcript.

We deliberately do not publish a per-university table here. Conversion rules sit in examination regulations that change between schemes and intake years, and a table copied from an aggregator is exactly how students end up quoting a number their own registrar would reject. Check your university's examination rules or transcript, and use this page's converter with the multiplier your institution actually specifies. Our methodology page explains the standard we hold data to before publishing it.

SGPA, CGPA and percentage

These three describe different things and get mixed up constantly:

• SGPA — your grade point average for one semester, weighted by the credits of each subject in that semester.
• CGPA — the credit-weighted average across every semester you have completed. It is not the plain average of your SGPAs unless each semester carried identical credits.
• Percentage — a conversion of CGPA, not a separate measurement. It never adds information; it only restates what your CGPA already says in a format employers ask for.

Because CGPA is credit-weighted, a 9.0 SGPA in a 16-credit semester pulls your CGPA harder than a 9.0 in a 12-credit one. If you want to see that effect on the US 4.0 scale, the cumulative GPA calculator shows the same weighting.

Common mistakes

• Rounding before converting. Rounding 8.46 up to 8.5 and then multiplying adds nearly half a percent you did not earn. Convert first, round last.
• Averaging your SGPAs. That gives the right answer only when every semester carried the same credits. Otherwise use the credit-weighted calculation.
• Assuming ×9.5 applies at degree level. It is a school-board rule. Your university almost certainly publishes its own.
• Converting an already-converted number. If your transcript already prints a percentage, use it. Running it through a formula again produces a number that matches no official record.

When you need this conversion

Most Indian job applications, government forms and PSU eligibility cutoffs are written in percentages, because they predate the shift to grade points. Applications abroad usually go the other way: foreign universities and credential evaluators generally prefer your original CGPA alongside the official transcript, and apply their own conversion rather than trusting yours.

Where a form accepts either, give the figure your transcript states and name the scale it sits on — “8.46 CGPA on a 10-point scale” is unambiguous in a way that a bare “80.4%” is not.