GraderCalculatorGrade smarter. Faster.
CGPA to Percentage Calculator

CGPA to Percentage Calculator

Convert CGPA to percentage — and back — with your university's own formula. No universal conversion exists.

Convert

Pick your university's formula, then enter your value.

Sourced formulas

Preloaded: CBSE, CGPA 8.6 → 81.7%. Change the preset to your university before trusting the number.

There is no universal CGPA → percentage conversion

Each institution defines its own formula. Using the wrong one gives a wrong percentage — and the differences are large. A CGPA of 8.0 is 76% under CBSE, 80% under Anna, 72.5% under VTU, and 70.4% under SPPU Engineering. Same CGPA, four different percentages. The formula is what differs, so always use your own institution's.

Verified formulas

SystemFormulaSource
CBSEPercentage = CGPA × 9.5CBSE Circular No. 24 / 28-05-2010 (cited; strong secondary)
VTUPercentage = (CGPA − 0.75) × 10VTU Regulations 18OBP 12.1 (via mirror)
SPPU Engineering, 2015 patternPercentage = CGPA × 8.80SPPU Board of Examinations letter 27/07/2018 (via mirror)
Anna UniversityPercentage = CGPA × 10Anna University Academic Regulations (primary)
GTUPercentage = (CGPA − 0.5) × 10GTU Notification 1/2012 (quoted; secondary)

CBSE note: CGPA 10 → 95%, not 100%. A percentage above 95 has no CBSE CGPA equivalent.

Mumbai University — contested, not settled

Two CBCS claims circulate: 7.1 × CGPA + 11 and 7.25 × CGPA + 11. At CGPA 8.0 they differ by 1.2 percentage points (67.8 vs 69.0). Engineering has a separate piecewise formula (CGPI < 7: 7.1 × CGPI + 12; CGPI ≥ 7: 7.4 × CGPI + 12). None is verified from MU's own circular. This calculator shows all of them, labelled contested — verify against Circular 1883 of 2017 before using any MU formula.

Percentage → CGPA

Invert your institution's own forward formula: CBSE: CGPA = percentage ÷ 9.5. Anna: CGPA = percentage ÷ 10. VTU: CGPA = (percentage ÷ 10) + 0.75. GTU: CGPA = (percentage ÷ 10) + 0.5. SPPU: CGPA = percentage ÷ 8.80. Inversion is valid only under that institution's formula, and rounding to two decimals loses precision.

CGPA → US 4.0 GPA

There is no official conversion. The common linear estimate is (percentage ÷ 100) × 4, shown in the result panel as an estimate only. Credential evaluators evaluate course by course — never present the linear estimate as an official conversion.

What not to use

  • “UGC ×10” / “AICTE ×10” — no such prescription was found. The UGC Guidelines define SGPA/CGPA but prescribe no conversion.
  • Another university's formula — the table above shows why: the same CGPA gives different percentages.
  • Plain-average CGPA — compute CGPA the credit-weighted way first (CGPA Calculator), then convert.

Full walkthrough: CGPA to Percentage Conversion. Compute CGPA first: CGPA Calculator, SGPA Calculator.

CGPA to Percentage Calculator FAQ

How do I convert CGPA to percentage?

Use your institution's own formula. There is no universal conversion. Examples: CBSE × 9.5, Anna × 10, VTU (CGPA − 0.75) × 10, GTU (CGPA − 0.5) × 10, SPPU Engineering × 8.80. Pick your system above.

Which formula should I use for my university?

The one your university's own regulations or circular prescribes. If your university is not listed, pick Custom and enter its multiplier, or check your transcript / registrar's circular. Never use a formula from another university.

Why do two sites give different percentages for the same CGPA?

Because they use different institutions' formulas. A CGPA of 8.0 is 76% under CBSE (× 9.5), 80% under Anna (× 10), 72.5% under VTU, and 70.4% under SPPU Engineering. Same CGPA, different percentages — the formula is what differs.

What is Mumbai University's CGPA to percentage formula?

It is contested. Two CBCS claims circulate: 7.1 × CGPA + 11 and 7.25 × CGPA + 11, and engineering has a piecewise formula (CGPI < 7: 7.1 × CGPI + 12; CGPI ≥ 7: 7.4 × CGPI + 12). None is verified from MU's own circular. This calculator shows all of them, labelled contested — verify against Circular 1883 of 2017.

How do I convert percentage to CGPA?

Invert your institution's own forward formula. For example, CBSE: CGPA = percentage ÷ 9.5. Anna: CGPA = percentage ÷ 10. VTU: CGPA = (percentage ÷ 10) + 0.75. Select the percentage → CGPA direction above.

How do I convert CGPA to US GPA?

There is no official conversion. The common linear estimate is (percentage ÷ 100) × 4, shown above as an estimate only. Credential evaluators evaluate course by course — do not present the linear estimate as an official conversion.