Combine your semester SGPAs into an overall CGPA — add credits for the exact credit-weighted value.
How to calculate CGPA from SGPA
- Enter the SGPA of each semester you have completed.
- For the exact answer, also enter each semester's total credits. Leave credits empty for a quick simple average.
- Your CGPA updates instantly, with an approximate percentage.
CGPA formula
CGPA = Σ (SGPA × Semester credits) ÷ Σ Semester credits
If every semester has the same credits, this is the same as the simple average: CGPA = (SGPA₁ + SGPA₂ + … ) ÷ number of semesters.
Example with credits
| Semester | SGPA | Credits | SGPA × Credits |
|---|
| Sem 1 | 7.8 | 20 | 156 |
| Sem 2 | 8.2 | 22 | 180.4 |
| Sem 3 | 8.6 | 24 | 206.4 |
| Total | | 66 | 542.8 |
CGPA = 542.8 ÷ 66 = 8.22. A simple average would give 8.20 — close, but the weighted value is the official one.
Next step: convert your CGPA with your university's formula using the CGPA to percentage calculator.
Frequently asked questions
How do I calculate CGPA from SGPA?
Multiply each semester's SGPA by its credits, add the results, and divide by the total credits. If all semesters have equal credits, simply average the SGPAs.
Is CGPA the average of all SGPAs?
Only when every semester has the same number of credits. Otherwise CGPA is a credit-weighted average, which is what this calculator uses when you enter credits.
How do I convert CGPA to percentage?
Use our CGPA to percentage calculator — it supports the general ×10 rule and university formulas such as CBSE, VTU, JNTU, AKTU and Anna University.
Can I calculate CGPA for only some semesters?
Yes. Enter only the semesters you have completed; the result is your CGPA up to that point.