University of Madras
percentage to CGPA
University of Madras — % → CGPA
Converting University of Madras percentage back to CGPA
University of Madras (Tamil Nadu) officially converts CGPA to percentage with % = CGPA × 10 (derived from the University's marks ÷ 10 grade-point table — not a stated conversion rule). This page inverts that formula so you can estimate the CGPA behind a known percentage. Enter your percentage above and the calculator solves for the CGPA on the 10-point scale.
Worked example
The official University of Madras formula is % = CGPA × 10 (derived from the University's marks ÷ 10 grade-point table — not a stated conversion rule). Starting from a percentage of 75%, the formula reverses to a CGPA of about 7.5 on the 10-point scale. You can check this by running 7.5 through the forward University of Madras CGPA to percentage calculator — it returns 75%, confirming the two directions agree.
Why this is an estimate, not an official figure
A college issues your percentage from your actual CGPA, not the other way around — so reversing the formula recovers the CGPA that would produce that percentage. When both numbers appear on your grade card, always quote the official CGPA rather than this estimate.
Source & verification
University of Madras — Handbook on Integrated Common Regulations for the UG and PG Degree Programmes offered in the Affiliated Arts and Science Colleges under CBCS-2019 (UG Reg. 8–9; PG Reg. 7–8): marks→grade-point table 90–100 → 9.0–10.0 (O), 80–89 → 8.0–8.9 (D+), 75–79 → 7.5–7.9 (D), 70–74 → 7.0–7.4 (A+), 60–69 → 6.0–6.9 (A), 50–59 → 5.0–5.9 (B), 40–49 → 4.0–4.9 (C), 00–39 → 0.0 (U); CGPA = ΣΣCniGni ÷ ΣΣCni.
NO EXPLICIT CONVERSION RULE: the University's regulations never say 'percentage = CGPA × 10'. They map marks to grade points in bands whose ranges run parallel to marks ÷ 10 (90–100 → 9.0–10.0, 80–89 → 8.0–8.9, … 50–59 → 5.0–5.9), and class cut-offs line up the same way (CGPA 6.0 ↔ 60% First Class, 7.5 ↔ 75% Distinction). CGPA × 10 therefore gives the credit-weighted average percentage. STATUS 'verified' (DERIVED): the formula is derived from the University's own published grade-point table, not quoted from a conversion rule — show 'Derived from the official grade-point table' on the page with a 'confirm against your mark statement' disclaimer. Classification: CGPA 9.0–10.0 First Class – Exemplary; 7.5–<9.0 First Class with Distinction; 6.0–<7.5 First Class; 5.0–<6.0 Second Class (UG Reg. 8 also states First Class = 60% aggregate, Second = 50–<60%). PG uses the same table with 00–49 = U. The regulations cover affiliated (non-autonomous) Arts & Science colleges; autonomous colleges may modify them. MCA and the older university-department CBCS (2007-08) report Weighted Average Marks (WAM) / Overall Weighted Percentage of Marks (OWPM), i.e. a direct percentage on the mark statement — use that where printed. CONTACT: Email is the Controller of Examinations' (the contact page lists no registrar/general email).
College contact
Address: University of Madras, Chepauk, Chennai – 600005, Tamil Nadu, India
Email: coe@unom.ac.in
Phone: +91-44-2539-9422
Website: official contact page
Need the usual direction? Use the University of Madras CGPA to percentage calculator, or browse the full percentage to CGPA directory.