Enter each semester’s GPA and its total credits, and this calculator combines them into your CGPA — weighted by credits, exactly the way universities do it, not a plain average.
What Is CGPA?
CGPA (Cumulative Grade Point Average) is your overall GPA across all completed semesters combined. It is not a simple average of semester GPAs, because semesters carry different credit loads — a semester with 16 credits must count more than one with 14. Universities calculate CGPA by weighting every semester’s GPA by its credits, and that is exactly what this calculator does.
How to Use
- For each completed semester, enter its GPA.
- Enter that semester’s total credits beside it.
- Leave unused rows empty.
- Click “Calculate CGPA” to see your CGPA, total grade points and total credits.
Formula
CGPA = sum of (semester GPA × semester credits) ÷ total credits across all semesters.
Worked Example
Semester 1: GPA 3.50 with 15 credits = 52.50 points. Semester 2: GPA 3.70 with 16 credits = 59.20 points. Semester 3: GPA 3.90 with 14 credits = 54.60 points. Total points = 166.30, total credits = 45, CGPA = 166.30 ÷ 45 = 3.70 (3.6956 before rounding).
How It Works, In Plain Words
Each row asks for two things: the GPA you earned that semester and the total credits that semester carried. The tool works through the rows one by one and turns each semester into grade points by multiplying its GPA by its credits — the worked example shows 3.50 × 15 = 52.50 points, 3.70 × 16 = 59.20 and 3.90 × 14 = 54.60. It then adds all the points together (166.30) and all the credits together (45), and divides the one by the other, exactly as the Formula states. That division is the weighting in action: the 16-credit semester contributes more points than the 14-credit one, so it pulls the final figure more strongly, which is the behaviour the What Is section describes. The result, 3.6956, is rounded to two places and shown as 3.70, alongside the two totals so you can check the arithmetic yourself. Rows with no credits are simply skipped.
Real-World Uses
First scenario: checking your own record. When a transcript or result portal shows a cumulative figure, entering the same semesters here and comparing the totals — 166.30 points over 45 credits in the example format — is a quick way to spot an entry error before it matters. Second scenario: planning ahead, the use the Benefits list below names. With your completed semesters in the rows, the totals tell you exactly where you stand, and trying the coming semester in a spare row shows what its GPA would do to the cumulative figure before you sit the exams. Third scenario: the scholarship, honours and job-application checks the Benefits list mentions, which ask for CGPA specifically. They expect the credit-weighted figure, and a plain average of your semester GPAs can state it wrongly when your semesters carried different credits.
Benefits
- Credit-weighted the official way, not a rough semester average
- See total points and credits so you can plan what GPA you need next semester
- Supports up to five semesters in one calculation
- Helps scholarship, honours and job-application checks that ask for CGPA
Features of Our Tool
- Instant results in your browser
- No sign-up, no download, 100% free
- Works on mobile, tablet and desktop
- Clear step-by-step explanation below the tool
- Private — your entries never leave your device.
Common Mistakes
- Averaging semester GPAs directly (3.50, 3.70, 3.90 averaged plainly gives 3.70 too — but only by luck; with different credits the plain average is wrong)
- Mixing 4.0-scale and 10-scale GPAs in the same calculation
- Forgetting a repeated or failed semester that the university still counts
Common Mistakes to Avoid
Beyond the list above, watch the entry itself. The two columns look alike, so it is easy to type credits into the GPA box and the GPA into the credits box; the column headings — Semester GPA and Credits — are the check, because a GPA of 15 or credits of 3.50 in the worked example’s terms would be obvious nonsense. Next, never fill in credits but leave the GPA beside them blank: a row with credits counts, and a blank GPA drags the result down as if that semester earned nothing. Finally, do not round as you go — keep each semester’s points unrounded and let the tool round once at the end, the way the worked example keeps 3.6956 whole until it becomes 3.70.
FAQ
How is CGPA calculated from semester GPAs?
Multiply each semester’s GPA by its credits, add the results, and divide by the total credits.
Is CGPA just the average of my GPA each semester?
Only when every semester has identical credits. Otherwise the credit-weighted result differs, and the weighted one is the official method.
What is a CGPA of 3.70?
On a 4.0 scale it is roughly an A− overall average — a strong result at most universities.
Can I convert CGPA to percentage?
If your CGPA is on the 10-point scale, our CGPA to Percentage Converter uses the common × 9.5 formula; on a 4.0 scale, conversions vary by institution.
How many semesters can I enter?
Five rows are provided; for more semesters, combine them in two passes by entering subtotal points and credits.
Why does my CGPA differ from the plain average of my semester GPAs?
Because the plain average treats every semester as equal, while CGPA weights each semester by its credits. In the worked example the plain average of 3.50, 3.70 and 3.90 happens to give 3.70 as well, but as the mistakes list above explains, that is only by luck: the semesters carried 15, 16 and 14 credits, not identical loads. When credits differ, the two methods part company, and the weighted result is the official one described in the FAQ above.
What happens if I leave a row empty?
Nothing at all — empty rows are ignored, which is why the How to Use steps tell you to leave unused rows empty. A row only takes part when it has credits entered. If no row has credits, the tool cannot divide by a total of zero, so instead of a CGPA it asks you to enter credits for at least one semester.