About this calculator
Enter each semester’s SGPA and credits. Leave credits empty to give every semester equal weight.
How to use it
- Enter the SGPA for each semester so far.
- Enter credits for each, or leave them all empty.
- Read your CGPA.
The formula
CGPA = Σ (SGPA × credits) ÷ Σ credits
- SGPA
- grade point average for one semester
- credits
- total credits of that semester
Worked example
Four semesters with 22 credits each
- SGPAs 8.2, 7.9, 8.5 and 8.8.
- CGPA = (8.2 + 7.9 + 8.5 + 8.8) × 22 ÷ 88 = 8.35.
- Equivalent percentage by the × 9.5 rule: 79.33%.
What the result means
When credits differ between semesters, the weighted CGPA can differ noticeably from a simple average.
Assumptions
- 10-point scale.
Limitations
- Some universities exclude failed or audit courses; follow your university’s rules.
Frequently asked questions
How do I calculate CGPA from SGPA?
Multiply each SGPA by its credits, add them, and divide by total credits.
Is CGPA the average of SGPAs?
Only when every semester has the same credits.
How do I convert CGPA to percentage?
Use your university’s rule; the CGPA to percentage calculator has the common ones.
Last reviewed on 3 October 2026. Found a mistake? Tell us.