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CGPA, SGPA and percentage: how Indian grading works
5 min read · Updated 9 Nov 2026
Most Indian universities now report grades on a 10-point scale instead of marks. Here's the chain from marks to CGPA — and why turning it back into a percentage depends on your university.
Marks → grade → grade point
Each subject's marks become a letter grade, and each grade carries points. Under the UGC's Choice Based Credit System the common scale is:
| Grade | O | A+ | A | B+ | B | C | P | F |
|---|---|---|---|---|---|---|---|---|
| Points | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 0 |
The marks needed for each grade are set by your university. Some use fixed bands (absolute grading); others grade relative to the class (relative grading).
Credits: the weights
Every subject carries credits — roughly, one credit for each weekly hour of lecture across a semester. A 4-credit subject counts twice as much as a 2-credit one.
SGPA and CGPA
- SGPA (semester grade point average) = Σ(credits × grade points) ÷ Σ credits, for one semester.
- CGPA (cumulative) is the same calculation across every semester so far — a credit-weighted average of your SGPAs.
Some universities call these SPI/CPI or GPA/CGPI. The maths is the same.
Back to percentage
There is no national formula. Each university publishes its own conversion — for example VTU uses (CGPA − 0.75) × 10, Mumbai University uses 7.1 × CGPA + 11, and Anna University uses CGPA × 10. The popular "× 9.5" was CBSE's rule for Class 10 results issued as CGPA; CBSE has since returned to marks.
When a form asks for a percentage, use your university's rule — or its conversion certificate, if it issues one.
In short
- Grade points × credits, averaged, gives SGPA; across semesters, CGPA.
- Credits decide how much each subject counts.
- CGPA → % is university-specific. Never assume ×9.5.
Sources
UGC guidelines on the Choice Based Credit System; university academic regulations and conversion circulars (VTU, University of Mumbai, Anna University). Grade bands and conversions change — check your university's current regulations.