CGPA Calculator
Combine your semester GPAs into a cumulative CGPA, with an optional percentage estimate.
Formula last reviewed 4 August 2026 · How we verify our calculators
CGPA
- Approx. percentage
- 80.8%
- Semesters counted
- 3
Updates live as you type
Frequently asked questions
CGPA (Cumulative Grade Point Average) is the credit-weighted average of your GPAs across all completed semesters — your overall academic standing in one number.
GPA usually refers to a single term, while CGPA aggregates every term so far. This tool weights each semester by its credits before averaging.
A common approximation is percentage = CGPA × 9.5 (the CBSE rule on a 10-point scale). The multiplier is editable because institutions differ — always check your official conversion formula.
No. It is only an estimate using the multiplier you enter. Your university may use a different formula, so rely on its published method for any official requirement.
The simple average would have given a different, wrong answer
Semester GPAs of 8, 8.5 and 9, with credits of 20, 22 and 21, don't average to 8.5 the way a naive mean would suggest. Weighted properly — (8 × 20) + (8.5 × 22) + (9 × 21) = 536, divided by 63 total credits — the actual CGPA is 8.51, pulled slightly toward the third semester's 9 because that term carried marginally fewer credits than the second. It's a small shift, but a real one, and it's exactly the kind of difference a simple average would silently get wrong.
Why credit-weighting isn't optional here
A CGPA that treats every semester equally regardless of credit load misrepresents academic record whenever semesters carry different weights — which is nearly always true in practice. This calculator weights each semester's GPA by its credits before combining them, so a heavier semester genuinely counts for more, matching how most institutions actually compute the figure on an official transcript.
What the percentage estimate is, and isn't
Applying the default 9.5 multiplier to a CGPA of 8.51 gives an approximate percentage of 80.8% — using the widely cited CBSE conversion for a 10-point scale. But that multiplier is an editable assumption, not a universal rule: many universities publish their own conversion formula, sometimes a grade-band lookup table rather than a flat multiplier, which can disagree with this estimate by a percentage point or two. Always check your institution's official method before quoting a converted percentage anywhere that matters.
This calculator is genuinely useful for monitoring progress across years and projecting where a CGPA will land after an upcoming semester's expected grades. For a single term's figure on its own, the GPA calculator is the right tool; to go from a percentage back to an estimated CGPA, the percentage-to-CGPA converter handles that direction.
Sources
- CBSE — 9.5 multiplier approximation for converting CGPA to percentage on a 10-point scale