The 10-point grading system, explained simply
Most Indian universities grade on a 10-point scale. Instead of a percentage for each subject, you receive a letter grade, and each letter maps to a number of grade points out of 10.
Grades to grade points
A common mapping is O (Outstanding) = 10, A+ = 9, A = 8, B+ = 7, B = 6, C = 5, P (Pass) = 4, and F (Fail) = 0. Some universities vary the labels or the exact points, so your student handbook is the final word, but the shape is the same: higher letter, higher points.
Grade points to SGPA and CGPA
For one semester, multiply each course's grade points by its credits, add those up, and divide by the total credits. That is your SGPA. Combine the SGPAs of every semester — again weighted by credits — and you get your CGPA. The credit weighting is the part people miss: a 4-credit core subject pulls your average more than a 1-credit lab.
See it work
Enter your subjects in the CGPA calculator with the scale set to India 10.0 and the result updates as you type. If you only have semester SGPAs, the SGPA to CGPA calculator rolls them up for you.
Two things trip up beginners. First, your CGPA is not simply your marks out of 10 — it is an average of grade points, which are coarser than raw marks. Second, a 10-point CGPA is not a percentage; converting it requires your university's official formula, which you can apply on the CGPA to percentage page.
What an “8.0 CGPA” actually represents
An 8.0 means your average grade point across all credits is 8 — roughly a solid A on most 10-point mappings. It does not mean you scored 80% in every subject; the grade-point system groups a band of marks into each letter, so a student who scored 78 and a student who scored 84 in the same subject can both receive the same grade point. This is why a CGPA can never be converted back to an exact percentage — only to the equivalent your university's official formula defines.
Key takeaways
- Each letter grade maps to a grade point out of 10 (O=10, A+=9, A=8, …).
- SGPA averages one semester's grade points by credits; CGPA combines all semesters.
- Credit weighting means heavy core subjects move your CGPA more than light electives.
- A 10-point CGPA is not a percentage — conversion needs your university's formula.