How to use the CGPA Calculator
- Enter each semester’s SGPA and its total credits.
- Choose the percentage conversion your university uses.
- Press Calculate.
Formula
CGPA = Σ(SGPA × semester credits) ÷ Σ credits
Common conversions: Percentage = CGPA × 9.5 (CBSE), or (CGPA − 0.75) × 10 at some universities.
Examples
- 8.2 (22 cr), 7.9 (24 cr), 8.6 (23 cr): 567.8 ÷ 69 = 8.23 CGPA ≈ 78.2%.
Frequently asked questions
Why multiply by 9.5?
CBSE derived 9.5 from the average performance of top students; many institutions adopted it. It is a convention, not a universal rule.