Your CGPA (Cumulative Grade Point Average) is the number that follows you after graduation. Employers, scholarship committees and foreign universities all ask for it. It combines every semester you have completed into one figure, weighted by credit hours. This guide shows how to calculate CGPA step by step, and how to check it in seconds with our free CGPA Calculator.
What you need
From each semester’s result card:
- The semester GPA
- The credit hours you completed that semester
The formula
CGPA = Σ (semester GPA × semester credits) ÷ Σ credits
Because heavier semesters count more, a 21-credit semester has more influence than a 12-credit summer session.
Worked example
| Semester | Credits | GPA | GPA × credits |
|---|---|---|---|
| 1 | 18 | 3.05 | 54.90 |
| 2 | 18 | 3.30 | 59.40 |
| 3 | 17 | 3.60 | 61.20 |
| 4 | 16 | 3.45 | 55.20 |
| Total | 69 | 230.70 |
CGPA = 230.70 ÷ 69 = 3.34
Why not just average the GPAs?
The simple average of the four GPAs above is 3.35, close but not identical. With bigger differences in credit loads, such as a 9-credit summer term, the gap grows. Your transcript always uses the weighted method.
Common mistakes
- Averaging GPAs without credits
- Including failed courses twice when your university replaces repeated grades
- Leaving out summer or improvement semesters
- Rounding each semester’s GPA before calculating
If your semester GPA is not yet known, calculate it first with the GPA Calculator.
Checking against your transcript
Many universities print the CGPA after every semester. If your calculation differs by more than a few hundredths, check credits and any repeated courses with the examination office.
Converting CGPA to percentage
Job forms sometimes ask for a percentage. Use your university’s official conversion where possible; our CGPA to percentage guide explains the options. For raw marks, the Percentage Calculator does the job.
How one semester changes your CGPA
The more credits you complete, the less a single semester can move your CGPA. In the example above, a 4.00 GPA in an 18-credit fifth semester would lift the CGPA from 3.34 to about 3.48. The same 4.00 after 120 credits would add much less. This is why strong early semesters matter, and why students aiming for a scholarship cut-off should plan ahead rather than hope for one perfect final term.
Keeping records
Save every result card as a PDF or photo. If you ever need to recalculate, or if a transcript has an error, these records make it easy to prove each semester’s GPA and credits.
Frequently asked questions
How is CGPA calculated?
Multiply each semester’s GPA by its credit hours, add the results and divide by total credits.
Is CGPA the average of all GPAs?
It is a credit-weighted average, not a simple average.
Does a summer semester count in CGPA?
Yes, if it carries credits, weighted by those credits.
What CGPA is needed to graduate?
Many universities require at least 2.0, but check your own rules.