Written by Zufishan · MS Environmental Science · Updated June 2026
SGPA, CGPA, and the credit-weighted average
SGPA is your Semester Grade Point Average, covering one term. CGPA is your Cumulative Grade Point Average, covering all terms. Because semesters at most Indian universities carry different credit loads, the CGPA is not a simple average of all SGPAs. It is a credit-weighted average where heavier semesters count more.
The formula
CGPA = Σ(SGPA × Credits) ÷ Σ(Credits)
Multiply each semester's SGPA by its credit hours, add the products, then divide by the total credits across all semesters. A 25-credit semester with an SGPA of 9.0 contributes 225 quality points. An 18-credit semester with the same SGPA contributes only 162 quality points.
Worked example
Four semesters of an engineering degree:
| Semester | SGPA | Credits | Quality points |
|---|---|---|---|
| Semester 1 | 8.4 | 24 | 201.6 |
| Semester 2 | 8.7 | 22 | 191.4 |
| Semester 3 | 9.1 | 26 | 236.6 |
| Semester 4 | 8.9 | 24 | 213.6 |
| Total | 96 | 843.2 |
CGPA = 843.2 ÷ 96 = 8.78. A simple average of the four SGPAs would give 8.775, nearly the same here because the credit loads are similar. When semesters differ more in credits, the gap between the two methods grows.
How to use this calculator
- Add a row for every completed semester.
- Enter the SGPA from your marks sheet for that semester.
- Enter the total credit hours for that semester.
- Click + Add semester for each additional term.
- Read the cumulative CGPA at the bottom of the calculator.
University-specific notes
| University | Method | Scale |
|---|---|---|
| VTU | Credit-weighted CGPA | 10.0 |
| Anna University | Credit-weighted CGPA | 10.0 |
| JNTU Hyderabad | Credit-weighted CGPA | 10.0 |
| Mumbai University | Credit-weighted CGPI | 10.0 |
| Some autonomous colleges | Simple average of SGPAs | 10.0 |
If your college uses a simple average rather than credit-weighting, enter the same credit value for every semester. The result is then equivalent to a simple average.
Converting your CGPA to percentage or US GPA
Once you have the CGPA from this calculator, use the CGPA to Percentage India tool to get the equivalent percentage for job applications and admission forms. To convert to a US 4.0 GPA for graduate school applications abroad, use the CGPA to GPA converter.
When to use this calculator
Use it at the end of each semester to update your running CGPA as results are published. Use it before your final semester to find the minimum SGPA needed to reach a target CGPA, by adding a hypothetical row for the upcoming term. Use it when preparing graduate school or job applications that ask for your cumulative CGPA and your transcript only shows per-semester SGPAs.
Common mistakes
Averaging SGPAs without credit weighting. If your semesters carry different credit loads, a simple average of SGPAs gives the wrong CGPA. Always use credit hours as weights.
Entering SGPA from the wrong scale. Most Indian universities use a 10-point scale. Some older or foreign institutions use a 4.0 or 5.0 scale. Mixing scales in the same session produces a meaningless CGPA.
Including backlogs or supplementary SGPAs. A backlog result is typically a repeat of a semester exam, not a new semester. Enter only full-semester SGPAs, one row per academic term.
Related calculators
- CGPA to Percentage India for converting your CGPA to a percentage
- CGPA to GPA for converting to the US 4.0 scale
- VTU SGPA Calculator for calculating semester SGPA at VTU
- Anna University CGPA Calculator for Anna University results
- Percentage to CGPA for the reverse conversion
Disclaimer: Results use the standard credit-weighted CGPA formula. Some institutions use a simple average or a custom formula. Confirm the method in your academic regulations before using the result on a formal application.