CGPA to Percentage Calculator
Turn your CGPA into a percentage, or a percentage into CGPA, with the rule your board or university uses. Advanced adds your CGPA from semester SGPAs and the SGPA you need to reach a target.
How your percentage is worked out
Each board or university sets its own rule. Most are percentage = multiplier × (CGPA − offset).
- 1
Your CGPA
CGPA 8.2
out of 10 - 2
Pick the rule
CBSE (India)
× 9.5 - 3
Work it out
8.2 × 9.5
= 77.9% - 4
On a 4-point scale
8.2 ÷ 10 × 4
= 3.28
Read more: the rules, the formula, SGPA to CGPA and the SGPA you need
A CGPA (cumulative grade point average) is the credit-weighted average of your grade points. There's no single way to turn it into a percentage: each board or university sets its own rule, and the rule printed on your mark sheet is the one that counts. Most rules are a straight line, so the same rule also turns a percentage back into CGPA.
The formula
percentage = multiplier × (CGPA − offset)
CBSE (India): percentage = CGPA × 9.5
VTU (India): percentage = (CGPA − 0.75) × 10
CGPA = percentage ÷ multiplier + offset
4-point GPA = CGPA ÷ 10 × 4
CGPA from semesters = Σ (credits × SGPA) ÷ Σ credits
SGPA needed = (target × all credits − CGPA × credits done) ÷ credits left
Worked example
With the CBSE rule, a CGPA of 8.2 is 8.2 × 9.5 = 77.9%. Backwards, 77.9 ÷ 9.5 = 8.2. With the VTU rule the same 8.2 is (8.2 − 0.75) × 10 = 7.45 × 10 = 74.5%, and with the × 10 rule of thumb it's 82%. On a 4-point scale, 8.2 ÷ 10 × 4 = 3.28.
The rules on offer
| Rule | Formula | CGPA 8.2 | Status |
|---|---|---|---|
| CBSE (India) | CGPA × 9.5 | 77.9% | Official, checked on cbse.gov.in |
| VTU (India) | (CGPA − 0.75) × 10 | 74.5% | Official, checked on vtu.ac.in |
| Times 10 | CGPA × 10 | 82% | Rule of thumb: check your university's rule |
| Minus 0.5 | (CGPA − 0.5) × 10 | 77% | Used by some universities: check your university's rule |
| Proportional | CGPA ÷ scale × 100 | 82% | Rule of thumb for any scale |
Checked on 18 Oct 2026. CBSE (India): "Overall indicative percentage of marks = 9.5 x CGPA", from CBSE's FAQs for its Class 10 CGPA system. VTU (India): "M = [CGPA Earned − 0.75] × 10", from VTU's B.E./B.Tech. regulations effective from 2021-22; older or newer VTU schemes and other courses may differ.
CGPA from your semesters
Multiply each semester's SGPA by its credits and divide by all the credits. 20 credits at 7.8 (156), 22 at 8.4 (184.8), 24 at 8.0 (192) and 22 at 8.6 (189.2) make 722 points over 88 credits: 722 ÷ 88 = 8.2045, shown as 8.20. The calculator rounds the CGPA to 2 decimals, as mark sheets do, before converting it: 8.20 × 9.5 = 77.9%.
The SGPA you need
With a CGPA of 7.5 after 4 semesters and a target of 8.0 after 8, you need (8.0 × 8 − 7.5 × 4) ÷ 4 = (64 − 30) ÷ 4 = 8.5 in each of the 4 semesters left. With the CBSE rule that's 8.5 × 9.5 = 80.75%. If you set the target as a percentage, the calculator turns it into a CGPA with your rule first. If the SGPA needed is above 10, the target can't be reached; the calculator shows the best you could still reach.
4-point GPA
For a US-style 4.0 GPA, a straight conversion is GPA ÷ 4 × 100, so 3.5 is 87.5%. The College Board's letter table gives a range instead: 3.3 (B+) is 87–89%, 3.7 (A−) is 90–92% and 4.0 (A) is 93% and up. Universities abroad and evaluators such as WES look at your grades their own way, so use these as a rough guide only.
Common questions
How do I convert CGPA to percentage for CBSE?
Multiply your CGPA by 9.5. A CGPA of 8.2 is 8.2 × 9.5 = 77.9%. CBSE (India) gives this as an indicative rule for its old Class 10 CGPA, and the same × 9.5 works for each subject's grade point.
Why 9.5?
CBSE's FAQ only gives the rule, not where 9.5 comes from. A CGPA of 10 becomes 95%, so the top band doesn't count as 100%. Universities each set their own rule, so the CBSE rule isn't right for a college CGPA unless your university says so.
What is the VTU CGPA to percentage formula?
VTU's B.E./B.Tech. regulations (from 2021-22) say percentage = (CGPA − 0.75) × 10. A CGPA of 8.20 gives (8.20 − 0.75) × 10 = 74.5%.
How do I convert percentage to CGPA?
Run your board's rule backwards. For CBSE, divide the percentage by 9.5, so 76% is 8.0. For the VTU rule, divide by 10 and add 0.75, so 74.5% is 8.2.
How do I convert a 10-point CGPA to a 4-point GPA?
A straight conversion divides by 10 and multiplies by 4, so 8.2 is 3.28. Universities abroad and evaluators such as WES usually look at each course grade instead, so treat this as a rough guide.
How is CGPA worked out from SGPAs?
Multiply each semester's SGPA by its credits, add them up and divide by all the credits. 20 credits at 7.8, 22 at 8.4, 24 at 8.0 and 22 at 8.6 make 722 points over 88 credits, a CGPA of 8.20.
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