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Universal tool

CGPA to Percentage Converter

There is no single correct CGPA-to-percentage formula. Pick your institution's system and this uses the formula that actually applies to you.

Reverse: percentage to CGPA

Why there is no universal formula

The multiplier depends entirely on your institution, and the disagreements are not small:

SystemFormula3.00 or 8.00 becomes
HEC standard (Pakistan)CGPA × 2575%
NUST (commonly cited)(CGPA × 25) − 12.562.5%
UGC CBCS (India)CGPA × 9.576%
IITsCGPA × 1080%
VTU(CGPA − 0.75) × 1072.5%
Mumbai University7.1 × CGPA + 1167.8%

The same academic performance can be reported as anywhere from 62.5% to 80% depending on which formula is applied. Choosing the wrong one is not a rounding error. It can put you on the wrong side of an eligibility cutoff.

Three rules

  1. Use your own institution's formula, not a generic one from a search result.
  2. Get it in writing. Most universities issue an official equivalence certificate through the examination branch. For government jobs, foreign admissions and credential evaluation, that document is what counts.
  3. State the formula alongside the number. Writing "78% (CGPA 3.12, converted as CGPA × 25)" is transparent and pre-empts questions.

Percentage back to CGPA is worse

Reversing the formula is arithmetically simple but conceptually shaky. Your CGPA was built from letter grades, each covering a band of marks. An 84% and an 80% may both have been recorded as the same letter, so the information needed to reconstruct an exact CGPA was discarded when the grade was assigned. Treat any reverse conversion as an estimate.