In short: your overall CGPA is every semester's GPA weighted by that semester's credits, not the average of the numbers on your grade cards. Enter each semester above and the result comes back with the 4.0-scale GPA and the percentage beside it, so one entry covers whichever unit the form in front of you is asking for.
Your marksheet says GPA. The university form asks for CGPA. The scholarship portal wants a percentage, and the foreign application wants something out of 4. All four are the same record, and this page turns one set of semesters into all of them at once.
How do you calculate your overall CGPA for a whole degree?
Weight every semester's grade points by its credits, add them up, then divide by your total credits. Aggregate CGPA, overall CGPA, total CGPA and cumulative CGPA are four names for that one figure. Here is a complete eight-semester degree, with the running CGPA after each set of results.
| Semester | GPA | Credits | CGPA so far |
|---|---|---|---|
| Semester 1 | 7.1 | 22 | 7.10 |
| Semester 2 | 7.6 | 20 | 7.34 |
| Semester 3 | 8.0 | 24 | 7.58 |
| Semester 4 | 7.4 | 22 | 7.53 |
| Semester 5 | 8.3 | 20 | 7.68 |
| Semester 6 | 7.9 | 26 | 7.72 |
| Semester 7 | 8.6 | 18 | 7.82 |
| Semester 8 | 8.2 | 20 | 7.87 |
This student finishes at 7.87. Two things in that column are worth noticing. The figure moves less with every passing semester, because each new result is a smaller share of a growing total. And it dips at semester four even though the grade was not the worst of the eight, because that term carried 22 credits while the stronger semester before it carried 24.
Averaging the eight GPA values instead gives 7.89. The gap is small here because the credit loads are fairly even; it widens as they diverge, which is why the weighted method is the one universities publish.
Your CGPA in every unit a form might ask for
One calculation, four numbers. The percentage row appears twice because Indian universities do not agree on a single conversion, so check which convention yours publishes before quoting either.
| Unit | Value | Where it applies |
|---|---|---|
| CGPA (10-point) | 7.87 | What most Indian transcripts print |
| Percentage (AICTE ×9.5) | 74.77% | First Class |
| Percentage (×10 convention) | 78.7% | VTU, Anna University, MAKAUT |
| GPA (4.0 scale) | 3.15 | Estimate for foreign forms |
The 4.0-scale figure is an estimate rather than an official conversion, and the two percentages differ by nearly four points on the same transcript. For your own university's rule, use the CGPA to percentage calculator; for what credential evaluators do with a converted GPA, the CGPA to GPA calculator covers it in full.
Why do credit hours change your CGPA?
Credits are the weights in the average, so a four-credit subject moves your final CGPA further than a one-credit subject carrying the same grade point. That's why two students with identical grade letters can finish with different CGPAs: the heavier courses count for more.

| Subject | Grade point | Credits | Credit points |
|---|---|---|---|
| Math | 9 | 4 | 36 |
| Lab | 9 | 1 | 9 |
| English | 7 | 3 | 21 |
Math and Lab carry identical grade points, but Math contributes 36 credit points against Lab's 9. The same logic runs one level up, across semesters, which is why a plain average of your semester GPAs only matches the official CGPA when every semester carried the same credits.
Working from individual course grades rather than semester figures? The GPA calculator takes a course list and does the same weighting per course.
Can you calculate a CGPA partway through your degree?
Yes, and it's a real number rather than a forecast. Enter only the semesters you have completed. The student above sits at 7.53 after four semesters and finishes at 7.87, so the mid-degree figure is accurate for the record it covers. It just covers less of that record.
This is the CGPA that goes on an interim transcript during placement season, and the one most placement filters are written against. Say which semesters it covers when you report it, since a six-semester CGPA and a final CGPA are different claims.
When should you use a calculator instead of working it out by hand?
Use one the moment your semesters carry different credits. Manual arithmetic is fine when every semester carries the same load, because then the weighted answer and the plain average agree. They stop agreeing once labs, electives and project terms enter the picture, which is most degrees.
- Your transcript lists different credits for each semester.
- You are working across six or eight semesters rather than two.
- You need the percentage and the 4.0 GPA alongside the CGPA.
- You want to check the CGPA your university published against your own record.
That last one is worth doing at least once. If your result disagrees with the printed figure, the usual causes are rounding at the semester stage or a difference between credits registered and credits earned.
Related calculators
To go from semester results to a CGPA with the method explained step by step, use the SGPA to CGPA calculator. For a single semester's percentage, the SGPA to percentage calculator shows every university formula at once. If you are unsure which of the three numbers a form wants, CGPA vs SGPA vs GPA sets them side by side, and the percentage to GPA calculator covers the 4.0, 5.0 and 10-point scales.
Not the calculator you need?
All four GPA calculators on this site answer a different question. The one you want depends on what you are starting from:
- If you have a list of courses, each with credits and a letter grade, use the GPA calculator for course grades and credits.
- If you have one 10-point CGPA already on your marksheet, use the CGPA to GPA calculator (10-point to 4.0).
- If you have a percentage, use the percentage to GPA calculator.