What CGPA means, and how it differs from SGPA
SGPA — semester grade point average — is your result for a single term. CGPA, the cumulative grade point average, is the figure that carries across your whole programme. On the 10-point scale used by most Indian universities and by many institutions elsewhere, both are reported out of 10, with 10 the ceiling.
This calculator takes the average of the semester figures you enter. That is the definition most universities publish and the one students are usually asked to reproduce: add up each semester's grade point average and divide by the number of semesters. It is worth being explicit that this treats every semester as equally important, which is the standard method but not the only one — see the last section.
Using this CGPA calculator
Each row is one semester. Enter that semester's grade point average — the SGPA from your result sheet, not individual subject marks. Three rows are shown to begin with, and Add semester reveals more, up to twelve.
A blank row is a semester you have not sat yet, not a zero. Empty rows stay out of both the sum and the count, so revealing extra rows for semesters still to come will not drag your CGPA down. The semesters counted figure tells you how many actually went into the answer, which is the quickest way to spot a row you meant to fill and did not.
Values above 10 are treated as 10, since the scale has a ceiling and anything higher is a typing slip rather than a result.
The formula, worked through
CGPA is the sum of your semester grade point averages divided by how many there are.
Three semesters at 8.2, 7.9 and 8.6 add up to 24.7. Divided by 3, that is a CGPA of 8.23. Add a fourth semester at 9.1 and the total becomes 33.8 over 4 semesters — 8.45.
That second step shows why a single weak semester matters less as you go. Early on, each term is a large share of the average and moves it sharply; by the sixth or eighth semester one result shifts the CGPA by only a tenth or two. It cuts both ways: a late surge lifts a low CGPA far less than students hope, which is a good argument for checking the arithmetic before relying on it.
Percentage conversion, and the credit-weighted variant
Many universities publish a conversion from CGPA to percentage, and the most widely used is simply CGPA × 9.5 — the formula CBSE popularised, which turns a CGPA of 8.23 into roughly 78.2%. Others multiply by 10, or subtract a constant first. There is no universal rule, so use whichever your own institution prints on its transcript; a conversion done with the wrong multiplier is a difference of several percentage points on an application form.
One genuine limitation to be aware of: some universities compute CGPA weighted by each semester's credits rather than as a plain average, so a heavier semester counts for more. This calculator does the plain average. If your semesters carry noticeably different credit loads and your university uses the weighted method, expect a small discrepancy against your official result.
For the 4.0 scale with per-course credits and letter grades, use the GPA calculator instead.
FAQ
How is CGPA calculated?
Add up the grade point average of every semester, then divide by the number of semesters.
Four semesters of 8.5, 9.0, 8.0 and 9.5 give (8.5 + 9.0 + 8.0 + 9.5) ÷ 4 = 8.75.
That's it. Enter the semesters you've finished and leave the rest blank — an empty row is a semester you haven't sat, and it stays out of the average.
What's the difference between SGPA and CGPA?
SGPA covers one semester. CGPA covers every semester so far.
Each semester's SGPA is what you type into a row above. To work an SGPA out from individual course grades first, the arithmetic is the same one level down — see the GPA Calculator, which does it on the 4.0 scale.
How many semesters do I include?
Every semester you've completed and been graded on, and no others. Three rows are shown; use Add semester for a fourth, a sixth, an eighth.
A CGPA printed halfway through a degree is the average of the semesters behind you, not a prediction of the ones ahead.
Why is my CGPA lower than my best semesters?
Because it's an average, and averages are anchored by everything behind them. A weak early semester keeps pulling for years, and its influence shrinks only as you add semesters around it.
Raising a CGPA late is slow arithmetic, not a matter of effort. Four strong semesters after four weak ones lands you in the middle, not at the top.
What is a good CGPA on the 10-point scale?
Most institutions treat anything from 8.0 up as a strong result and 9.0 up as an outstanding one, but the line moves with the university and with what you want the number for.
A recruiter's cutoff, a scholarship's threshold and a postgraduate application's minimum are three different bars. Check the one you're actually clearing rather than a general rule.