Indian Institute of Technology Madras (IIT Madras) CGPA to Percentage Calculator

Indian Institute of Technology Madras (IIT Madras) CGPA to percentage calculator using the official rule (Percentage = CGPA × 10 (notional)), with conversion table, worked example and the official source linked.

Convert CGPA to percentage

By university rule • Official source linked with every result

Your CGPA (0–10)

University (rule source) — tap to search

No rule is applied until you select a university — we never guess a formula.

What CGPA do you need for your target percentage?

Reverse of the official rule above

Enter the percentage a form, employer or admission asks for, and this works backwards through the same official rule to the CGPA you need. If the rule cannot be reversed to one exact CGPA (banded rules), it says so instead of guessing.

Target percentage (%)

Convert your iit madras cgpa to percentage with the calculator above — IIT Madras is pre-selected, so just enter your CGPA. This page explains the official rule, where IIT Madras publishes it, and how to check the number yourself before you use it on any form.

The official IIT Madras rule

IIT Madras converts CGPA to percentage with Percentage = CGPA × 10 (notional). It applies to: Current rule (Institute conversion certificate: 'The formula applicable for conversion of CGPA to percentage (notional) is CGPA multiplied by the factor of 10 (CGPA x 10) with effect from 11.11.2020'). The rule is taken from Indian Institute of Technology Madras — CGPA to Percentage Conversion certificate (iitm.ac.in) ↗ — open that official document and you will find the same formula; we never copy conversion rules from other calculator websites.

Worked example: a CGPA of 8.20 converts to 82.00%. The calculator shows the substituted equation with every result, together with the rule's scope and a link to the official source, so an employer or admission cell can verify it the same way you can.

IIT Madras CGPA to percentage conversion table

CGPA	Percentage	Indicative class*
10.0	100.00%	First Class with Distinction
9.5	95.00%	First Class with Distinction
9.0	90.00%	First Class with Distinction
8.5	85.00%	First Class with Distinction
8.0	80.00%	First Class with Distinction
7.5	75.00%	First Class with Distinction
7.0	70.00%	First Class with Distinction
6.5	65.00%	First Class
6.0	60.00%	First Class

*Indicative class uses the common bands (70% and above: First Class with Distinction, 60%+: First Class, 50%+: Second Class, 40%+: Pass). Your university's own division rules govern your degree — check your ordinance.

Computed with IIT Madras's official rule above. If the calculator offers a scheme or batch selector, the table follows the default version — check the version note before quoting a figure.

How to convert, step by step

First, take your exact final CGPA from your consolidated grade card, without rounding it. Second, confirm the scheme, ordinance or graduation-year version that governs your batch — if this page's calculator shows a version selector, choose yours. Third, enter the CGPA above and apply the official equation exactly as written. Fourth, when you report the percentage anywhere official, name the rule beside it (for example, “as per Indian Institute of Technology Madras — CGPA to Percentage Conversion certificate (iitm.ac.in)”) so the figure can be checked. If you still need the CGPA itself, build it from semester SGPAs with the SGPA to CGPA calculator first. The general method is also explained in our guide on how to convert CGPA into percentage.

Good to know

10-point scale. Use credits from your IIT Madras grade card for weighted CGPA. IIT Madras publishes more than one conversion by scheme or batch (From 11 November 2020 onwards; Earlier Senate formula (2015-batch ordinances)), and the calculator above has a selector for them — the table on this page follows the default (From 11 November 2020 onwards). Switch the selector and the result follows your scheme.

Mistakes IIT Madras students should avoid

Multiplying by 9.5 (or borrowing another university's multiplier) instead of IIT Madras's official rule above.
Converting one semester's SGPA and quoting it as the final degree percentage.
Rounding the CGPA before converting — apply the formula to the exact CGPA and round only the result.

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Frequently asked questions

What is the IIT Madras CGPA to percentage formula?

IIT Madras uses Percentage = CGPA × 10 (notional). It applies to Current rule (Institute conversion certificate: 'The formula applicable for conversion of CGPA to percentage (notional) is CGPA multiplied by the factor of 10 (CGPA x 10) with effect from 11.11.2020'). The rule comes from Indian Institute of Technology Madras — CGPA to Percentage Conversion certificate (iitm.ac.in), linked from this page and from every calculator result.

How do I convert IIT Madras CGPA to percentage manually?

Take your exact final CGPA and apply the official equation. Example: CGPA 8.20 converts to 82.00%. The calculator above does the same calculation and shows the substituted formula.

What CGPA do I need for 60% at IIT Madras?

Under Percentage = CGPA × 10 (notional), 60% needs a CGPA of 6.00. Use the target-percentage tool above the FAQs to work backwards from any percentage you need under the same rule.

Can I use a generic CGPA × 9.5 or × 10 shortcut instead?

Only if it happens to be IIT Madras's own published rule for your batch. Universities publish different conversions, and a shortcut copied from another university or a school board can misstate your percentage by several points on admission and job forms.

Where can I verify this rule myself?

In the official document linked on this page: Indian Institute of Technology Madras — CGPA to Percentage Conversion certificate (iitm.ac.in). If your batch's marksheet prints a different conversion, that printed rule governs your result — tell us through the Contact page and we will update this page with the official source.

Last reviewed: 2026-10-19 • Report an error • Inputs are stored only in the URL, never on a server.