IIT-B GPA Calculator
Calculate your IIT Bombay CGPA (called CPI at IITB) with the AA–DD 10-point scale and credit weighting. Free, instant, no signup.
Last updated: July 2026 · Scale: IIT 10-Point Scale (AA-DD)
How is GPA calculated at IIT-B?
Indian Institute of Technology Bombay uses the IIT 10-Point Scale (AA-DD) (maximum 10.00). Each grade carries quality points. Your GPA is the credit-weighted average:
GPA = Σ (grade points × credit hours) ÷ Σ credit hours
Worked example
- Course 1: grade A (4.00) × 3 credit hours = 12.00 quality points
- Course 2: grade B+ (3.33) × 3 credit hours = 9.99 quality points
- Course 3: grade B (3.00) × 2 credit hours = 6.00 quality points
- GPA = (12.00 + 9.99 + 6.00) ÷ 8 credit hours = 3.50
IIT-B grade chart
| Percentage | Letter grade | Grade points |
|---|---|---|
| 90–100% | AA | 10.00 |
| 80–89.99% | AB | 9.00 |
| 70–79.99% | BB | 8.00 |
| 60–69.99% | BC | 7.00 |
| 50–59.99% | CC | 6.00 |
| 45–49.99% | CD | 5.00 |
| 40–44.99% | DD | 4.00 |
| 0–39.99% | F | 0.00 |
Frequently Asked Questions
What is CPI in IIT Bombay?
CPI (Cumulative Performance Index) is IITB's name for CGPA — the credit-weighted average of your AA–DD grade points.
What CPI is needed to avoid academic probation at IITB?
Falling below CPI 5.0 generally invites academic review — keep above it.
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