Calculate your cumulative CGPA on Indian Institute of Technology Bombay's own 10-point scale, weighted by credit hours. Your entries stay in your browser.
Your CGPA is a credit-hour weighted average, not a simple average of your semester GPAs.
Each course contributes grade points × credit hours (its quality points) and your CGPA is
the total quality points divided by the total credit hours attempted.
This is why a 4-credit course moves your CGPA roughly four times as much as a 1-credit lab, and why averaging your semester GPAs directly gives the wrong answer whenever your credit load varies between semesters.
IIT Bombay calls the semester average SPI and the cumulative average CPI, both credit-weighted to two decimal places. Grades are letter pairs (AA, AB, BB) rather than single letters, and most courses are graded relative to the cohort, so there is no published percentage table. When a failed course is later cleared, the CPI reflects only the new passing grade. The earlier FR is dropped from the calculation, and a course failed repeatedly still appears only once in both numerator and denominator. Courses taken through NPTEL, SWAYAM or a semester exchange count toward credits but their grades are excluded from the CPI.
| Grade | Points | Meaning |
|---|---|---|
| AP | 10.00 | Exceptional performance. Restricted grade: only in courses with more than 50 registered students, capped at 2% of course strength, never for projects or seminars. |
| AA | 10.00 | Outstanding |
| AB | 9.00 | Excellent |
| BB | 8.00 | Very good |
| BC | 7.00 | Good |
| CC | 6.00 | Average |
| CD | 5.00 | Below average |
| DD | 4.00 | Lowest passing grade |
| FR | 0.00 | Fail — must repeat the course |
| Code | How it is treated |
|---|---|
| DX | Fail due to attendance below the required minimum. Counts as zero, like FR. |
| FF | Fail with re-examination permitted (postgraduate rules). Counts as zero until cleared. |
| II | Incomplete placeholder — converted to a real grade after the semester-end re-examination. Excluded while it stands. |
| PP | Pass in a pass/fail course. Carries no grade points and is excluded from SPI/CPI. |
| NP | Not passed in a pass/fail course. Excluded from SPI/CPI, but the degree requires a PP. |
| AU | Audited course. Excluded entirely. |
| W | Withdrawn. Excluded from SPI/CPI. |
| DR | Position holder pending a decision. Excluded. |