Indian Institute of Technology Madras (IIT Madras)
percentage to CGPA
Indian Institute of Technology Madras (IIT Madras) — % → CGPA
Converting Indian Institute of Technology Madras (IIT Madras) percentage back to CGPA
Indian Institute of Technology Madras (IIT Madras) (Tamil Nadu) officially converts CGPA to percentage with % = CGPA × 10 (graduated 11.11.2020 onwards); 55 + 10×(CGPA − 6) for earlier graduates. This page inverts that formula so you can estimate the CGPA behind a known percentage — useful when a scholarship form, job portal or foreign application asks for CGPA but your marksheet only shows a percentage. Enter your percentage above and the calculator solves for the CGPA on the 10-point scale.
Worked example
The official Indian Institute of Technology Madras (IIT Madras) formula is % = CGPA × 10 (graduated 11.11.2020 onwards); 55 + 10×(CGPA − 6) for earlier graduates. To go the other way, you rearrange it to solve for CGPA. Starting from a percentage of 85%, the formula reverses to a CGPA of about 8.5 on the 10-point scale. You can check this by running 8.5 through the forward Indian Institute of Technology Madras (IIT Madras) CGPA to percentage calculator — it returns 85%, confirming the two directions agree.
Why this is an estimate, not an official figure
A university issues your percentage from your actual CGPA, not the other way around — so reversing the formula recovers the CGPA that would produce that percentage. It matches in almost every case, but rounding on your transcript (for example a percentage printed to one decimal place) can shift the back-calculated CGPA slightly. When both numbers appear on your grade card, always quote the official CGPA rather than this estimate.
Indian Institute of Technology Madras (IIT Madras) Conversion by graduation date
IIT Madras changed its conversion formula for students graduating from 11 November 2020. Choose the option matching your graduation date: Pick the matching option in the calculator above so the reverse estimate uses the right formula for your batch.
| Graduation date | Conversion | Notes |
|---|---|---|
| Graduated from 11.11.2020 onwards | % = CGPA × 10 | Senate-approved. Example: CGPA 8.5 → 85%. |
| Graduated up to 10.11.2020 | % = 55 + 10 × (CGPA − 6) | Equivalent to (CGPA × 10) − 5. Example: CGPA 8.5 → 80%. |
About Indian Institute of Technology Madras (IIT Madras)
The Indian Institute of Technology Madras (IIT Madras) is an Institute of National Importance in Chennai, Tamil Nadu, established in 1959 with German technical collaboration. Consistently ranked India's top engineering institute in the NIRF rankings, it offers B.Tech, dual-degree, M.Tech, M.S., MBA, M.Sc and Ph.D programmes on a 10-point credit-based grading system.
Address: IIT P.O., Chennai – 600036, Tamil Nadu, India.
Need the usual direction? Use the Indian Institute of Technology Madras (IIT Madras) CGPA to percentage calculator, or browse the full percentage to CGPA directory.