Use the rule that belongs to your course
There is no single CGPA conversion that fits every university, programme and admission batch. A ten-point grade can produce different percentages under different regulations. This converter lets you select two carefully scoped university presets or enter a linear rule from your own institution. It shows the formula used beside the answer, so the calculation remains reviewable. Start with your consolidated marksheet or official academic regulation. If those documents already state a percentage, use that institutional figure for official forms. The tool calculates an estimate under the selected rule; it does not issue a university conversion certificate.
Choose a preset without mixing regulations
The Anna preset is specifically for University Departments B.E./B.Tech Academic Regulations 2023, Revision 1, 2024, clause 21.10. It uses CGPA multiplied by ten. The VTU preset follows the published standard formula for the 2015, 2017 and 2018 schemes only: subtract 0.75 from CGPA and multiply by ten. Those labels are part of the calculation, not incidental names. Do not select either preset simply because your college has a similar name or is affiliated with the university. Newer regulations, other degrees and autonomous colleges may follow another rule. Check your exact programme and applicable scheme before selecting.
Enter a custom university formula
Custom mode uses Percentage = (CGPA − b) × a. Enter the maximum of your CGPA scale, the multiplier a and the offset b that is subtracted before multiplication. The defaults illustrate a ten-point linear rule; they are not an official recommendation for an unspecified university. If your document says percentage equals CGPA multiplied by 9.5, enter a = 9.5 and b = 0. If it uses a table, bands or a nonlinear expression, this custom mode cannot reproduce the rule. Do not approximate an official table with a multiplier merely to get a convenient answer.
Check worked examples and input limits
For CGPA 8.2, the scoped Anna formula gives 82%, while the scoped VTU formula gives 74.5%. A hypothetical four-point scale with factor 25 and offset zero converts CGPA 3 to 75%; that is an example of the custom calculation, not a universal four-point conversion. CGPA must stay between zero and the selected scale maximum. The scale and multiplier must be positive, and all numeric fields must be finite. If the formula produces a percentage below zero or above one hundred, the tool stops instead of silently clipping the answer. Review the input and rule when that happens.
Read and download the calculation report
Generate displays the percentage to two decimal places together with the CGPA, scale, regulation label and formula. The JSON report keeps the percentage with up to six decimal places, so the displayed rounding does not hide the underlying result. Download the report if you need to check the calculation later or discuss it with your college office. The report is not signed or certified, and it does not establish eligibility for a job, admission or scholarship. If a form asks for a particular rounding convention, apply the institution’s instruction rather than assuming that this display rule governs the form.
Keep CGPA, SGPA and aggregate marks distinct
CGPA normally summarises cumulative performance, while SGPA describes a semester. This tool does not combine semester grades, calculate credits or reconstruct an aggregate from individual marks. Enter the cumulative value required by your regulation. Averaging semester percentages can give a different answer from a credit-weighted cumulative grade, so avoid mixing the two without an explicit rule. Tool inputs are processed locally; no transcript upload is required. Keep your original academic documents and confirm an unfamiliar formula with the registrar or examination office. For related planning, the Final Exam Minimum Score tool answers a different question about a remaining exam.
FAQ
Does every university use CGPA × 10?
No. Select only an applicable preset or enter the linear formula provided by your institution.
Can all Anna students use this preset?
The label is restricted to University Departments B.E./B.Tech R2023 Revision 1, 2024. Other programmes and regulations need their own rule.
Does the VTU preset cover newer schemes?
No. It is labelled for the published 2015, 2017 and 2018 schemes only; do not extend it to another scheme.
What if my university uses a conversion table?
A table or nonlinear rule is outside this linear custom converter. Follow the table or obtain an official conversion statement.
Can I upload my marksheet?
No upload is needed. Enter the required CGPA and formula parameters; keep your personal academic document private.
Is the downloaded report an official certificate?
No. It records your calculation and selected assumptions. A formal certificate must come from the appropriate institution.
Advice
Check the sample first, then use your own inputs. Keep the original source and review every assumption before submitting or sharing a result. Generated files help with preparation; the final academic or study decision still needs the appropriate source, course instructions and human review.
Related tools
Educational helper. Check applicable rules, import settings and model assumptions before using the output.
Sources: Anna UD R2023 Rev.1, clause 21.10 · VTU: specified schemes