CGPA to Percentage Calculator

About the CGPA to Percentage Calculator

There is no single national formula for turning a CGPA into a percentage: each board and university sets its own, and they give different answers for the same CGPA. Pick the rule of the body that awarded your CGPA and the calculator gives the percentage with the working, the class it corresponds to where the regulations define one, and the document the rule comes from.

Built-in rules: CBSE Class X under the CCE scheme (2010–2017 results, 9.5 × CGPA), VTU’s 2021, 2022 and 2025 schemes (CGPA × 10, with First Class with Distinction, First Class, Second Class and Pass Class), the VTU 2018 scheme ((CGPA − 0.75) × 10), Anna University R2021 and R2025 (CGPA × 10), JNTUH R22 and R25 ((CGPA − 0.5) × 10), AKTU (CGPA × 10) and the IIMs’ CAT rule for universities without a formula (CGPA ÷ maximum CGPA × 100). For any other university, type its formula as a × CGPA + b. Enter a target percentage to see the CGPA it needs.

The built-in rules

• CBSE Class X, CCE scheme: “Subject wise indicative percentage of marks = 9.5 × GP of the subject” and “Overall indicative percentage of marks = 9.5 × CGPA”, where the CGPA is the average of the grade points of all subjects except a sixth, additional subject (Examination Bye-Laws, Rule 38(a)). Grading began with the 2009–10 session (Circular 39/2009) and the Class X board examination with marks returned from 2017–18 (Circular Acad-05/2017), so the rule applies to Class X results of 2010 to 2017.
• VTU 2021, 2022 and 2025 schemes: M = CGPA × 10 (21OB 13.2, 22OB 6.7, 25OB 26.0; the VTU Examination Manual 2024 gives the same). The 2021 regulations add that there is no formula for converting CGPA into marks, but this one may be used for employment and higher studies.
• VTU 2018 scheme: P = (CGPA − 0.75) × 10 (18OB 7.1), so 8.20 becomes 74.5%.
• Anna University, affiliated colleges (R2021 and R2025): the consolidated grade sheet shows the percentage of marks = CGPA × 10 (clauses 15.5.3 and 21.10).
• JNTUH B.Tech. (R22 and R25): % of marks = (final CGPA − 0.5) × 10 (clauses 11.2 and 19.1), so 8.2 becomes 77%.
• AKTU B.Tech. (2018–19 ordinance): percentage of marks = CGPA × 10 (clause 15).
• No university formula: the IIMs’ CAT bulletin divides the CGPA by the maximum possible CGPA and multiplies by 100 — but only when the university confirms it has no conversion scheme of its own.

Class at VTU

After the final CGPA is converted, the 2021, 2022 and 2025 regulations declare First Class with Distinction at 70% or more, First Class from 60% to below 70%, Second Class from 50% to below 60% and Pass Class from 40% to below 50%. (The 2021 and 2022 texts write the Pass Class as 40% to 50%, so exactly 50% sits in both bands there; the 2025 text puts it in Second Class.) Under the 2018 scheme the classes are FCD at 70% or more, FC from 60% to below 70% and Second Class below 60%.

A class comes with the degree, and the degree needs a minimum final CGPA: 5.00 under the 2018 and 2021 schemes (18OB 10.4, 21OB 15.5) and 4 under the 2025 scheme (25OB 13.0). So under the 2018 scheme Second Class runs from 42.5% (CGPA 5.00) to below 60%, and under the 2021 scheme a Pass Class below 50% does not occur. The table under the result also shows the CGPA each class needs.

Why the same CGPA gives different percentages

A CGPA is an average of grade points, not of marks, and every grade point covers a band of marks. Each board or university therefore decides how to express it as a percentage: CBSE scaled by 9.5, VTU multiplies by 10 in its recent schemes and subtracted 0.75 first in 2018. A CGPA of 8.2 is 77.9% by CBSE’s rule, 82% by VTU’s current rule and 74.5% by VTU’s 2018 rule — so always use the rule of the institution that awarded it, and quote it when you write a percentage on a form.

Sources

• CBSE, Examination Bye-Laws, Rule 38(a), page 35
• CBSE, Circular 39/2009 (archived copy) and Circular Acad-05/2017
• VTU, B.E./B.Tech. Regulations 2021 (21OB 13.2–13.3 and 15.5), Regulations 2022 (22OB 6.7–6.8), Regulations 2025 (25OB 13.0 and 26.0–27.0) and the Examination Manual 2024, pages 123–124
• VTU, B.E./B.Tech. Regulations 2018–19, 18OB 7.1–7.2 and 10.4 (archived copy; no longer on vtu.ac.in)
• Anna University, Regulations 2021 (clause 15.5.3) and Academic Regulations 2025 (clause 21.10), affiliated institutions
• JNTUH, R22 B.Tech. Academic Regulations (clause 11.2) and R25 B.Tech. Academic Regulations (clause 19.1)
• AKTU, B.Tech. ordinance 2018–19 (revised), clause 15
• IIMs, CAT 2026 Information Bulletin, Eligibility

Limitations

• Only rules whose regulation we could read are built in. For any other university, take the formula from its regulations or grade card and use the custom a × CGPA + b rule.
• The percentage on your official documents is what your board or university certifies; an employer or college may also apply its own conversion.
• VTU declares the class on the final CGPA after you complete the programme. Converting an SGPA with a CGPA formula gives only an indicative figure.

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