SGPA to CGPA calculator
Combine your semester SGPAs, weighted by credits, into your cumulative CGPA.
SGPA → CGPA
From SGPA to CGPA
Once you have each semester's SGPA, your CGPA is just a credit-weighted average of those SGPAs. Enter each semester's SGPA as the grade and its total credits as the credit value — the dial gives your cumulative CGPA across the whole programme.
The formula
CGPA = Σ(SGPA × semester credits) ÷ Σ(semester credits)
If every semester carries the same number of credits, this reduces to a plain average of your SGPAs — but most programmes vary credits term to term, so weighting matters.
Worked example
A student finishes four semesters:
- Sem 1 — SGPA 8.0, 22 credits
- Sem 2 — SGPA 8.5, 24 credits
- Sem 3 — SGPA 7.6, 20 credits
- Sem 4 — SGPA 9.0, 26 credits
Weighted total = (8.0×22) + (8.5×24) + (7.6×20) + (9.0×26) = 176 + 204 + 152 + 234 = 766. Total credits = 92. CGPA = 766 ÷ 92 = 8.33.
A simple average of the four SGPAs would give 8.28 — close, but wrong, because the high-credit 9.0 semester deserves more weight.
Common mistakes to avoid
- Averaging SGPAs without credits. Only valid when all semesters have identical credits; otherwise it's inaccurate.
- Using subject credits instead of semester credits. Here the credit value is the whole semester's total, not an individual course.
- Forgetting a re-exam or supplementary semester. Include every semester that contributes to your degree.
Need the percentage equivalent afterwards? Take your CGPA to the CGPA to percentage calculator and select your university.