There is no single universal formula
Job applications, scholarships and university admissions often ask for a percentage, but many institutions grade on a cumulative grade point average (CGPA). Converting between them depends on the grading system, and different boards and universities publish different formulas. This calculator includes the most widely used ones and a custom multiplier, and always shows the alternatives so you can see how much the choice matters. If your transcript or university website states a formula, use that one; employers and admissions offices normally accept the institution's official conversion.
The formulas
- CBSE and many 10-point systems: percentage = CGPA × 9.5. India's Central Board of Secondary Education derived the 9.5 factor from the average marks of students who scored grade A1 over several years. Many Indian universities, including several technical universities, use the same factor or publish their own (for example CGPA × 10 − 7.5 or − 5).
- 10-point × 10: a simple proportional conversion used by some universities: 8.2 CGPA becomes 82%.
- 4.0 scale: percentage = CGPA ÷ 4 × 100, the plain proportional method often used for US-style GPAs and in Pakistan, where universities follow HEC guidance but may publish their own equivalence tables. A 3.4 CGPA becomes 85% this way.
- 5.0 scale: percentage = CGPA ÷ 5 × 100, for universities that grade out of 5.
- Custom: enter the multiplier and maximum CGPA your institution states.
Why the results differ
Grade points are not a straight line from percentages. On a 4.0 scale, an A might start at 85% at one university and 90% at another, and grade boundaries are often uneven. A proportional formula therefore gives an approximation, not the exact marks you earned. That is also why converting a percentage back to CGPA may not match your transcript.
Tips for applications
When a form asks for a percentage, write the formula you used, for example “3.4/4.0 CGPA (85% by CGPA ÷ 4 × 100)”, or attach your university's official equivalence certificate. For applications abroad, agencies such as WES evaluate transcripts using their own methods, so always give the original CGPA and scale as well.