CGPA calculator
CGPA = Σ (SGPA × semester credits) ÷ Σ credits
774.2 ÷ 94 = 8.23
Semesters are weighted by their credits. Averaging SGPA numbers is only correct when every semester carries the same load.
CGPA formula: Σ(SGPA × credits) ÷ Σcredits
Enter each semester’s SGPA and the credits used to calculate that SGPA. For semesters of 8.0 with 20 credits and 9.0 with 24 credits: (8 × 20 + 9 × 24) ÷ 44 = 8.54545…, displayed as 8.54. Your university may require a different rounding method.
CGPA is the credit-weighted average of every semester you have completed. Multiply each semester’s SGPA by the credits that semester carried, add the products, then divide by total credits. It is not the plain average of your SGPA numbers, and the two differ whenever your semesters carry different credit loads — the plain average is correct only when the credit loads are equal.
A first semester of 22 credits and a fourth of 25 do not deserve equal weight. Averaging them treats a light foundation semester as though it mattered as much as a heavy core one. Over eight semesters the drift is usually a tenth or two of a grade point, which is enough to move you across a placement cut-off written as "CGPA 8.0 and above".
Backlog and repeat-course treatment is university-specific. Use revised semester results and the credit basis specified by your examination manual. Do not count the same course twice when a revised grade replaces an earlier attempt.
Audit and non-credit courses stay off the calculation entirely. They appear on the transcript with a grade but carry zero credits, so they contribute nothing to the weighted sum. Anything with zero credits can be entered safely; it drops out of the arithmetic on its own.
If you have subject grades rather than semester averages, start with the SGPA calculator for each semester and bring the results back here. To put the finished CGPA on a form that wants a percentage, use CGPA to percentage.
Why the weighting changes the answer
| Semesters (SGPA × credits) | Plain average | Credit-weighted |
|---|---|---|
| 7.80×22, 8.10×24, 8.60×25, 8.40×23 | 8.22 | 8.23 |
| 8.00×20, 8.00×20, 8.00×20 | 8.00 | 8.00 |
| 9.00×18, 7.00×30 | 8.00 | 7.75 |
| 7.00×18, 9.00×30 | 8.00 | 8.25 |
| 6.50×24, 8.50×24 | 7.50 | 7.50 |
| 8.80×26, 7.20×16, 8.10×22 | 8.03 | 8.15 |
Three mistakes to avoid
Frequently asked
How do I calculate CGPA?
Can I just average my SGPAs?
Do backlogs affect CGPA?
What about audit courses?
Is this the CGPA my university will certify?
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Last updated 8 October 2026 · reviewed by Ajay Sukhadeve