CGPA & Percentage Calculator
Two calculators for two stages of student life. College students compute CGPA, SGPA, and the corresponding percentage on their university scale. Class 10 and Class 12 students compute total marks, percentage, grade, and CBSE-style best of 5.
Most Indian universities use a 10-point scale and the standard conversion Percentage = CGPA × 9.5.
How to use it
- 1Pick the right tab. College students stay on College CGPA. Class 10, 12, and most state board students switch to School marks (out of 100).
- 2For CGPA, pick your university. The conversion to percentage follows the official formula your transcript will use. For school marks, pick your board so the right defaults and best-of-5 logic kicks in.
- 3Add or edit subjects. Numbers update live. Everything you enter is saved on your device, so you can come back next semester or after the result.
About this tool
The Indian education system uses two different number systems at two different stages, and the difference confuses people every year. School boards (CBSE, ICSE, and the state boards) report marks out of 100 per subject. The total of those marks gives a percentage, and a grade letter sits next to it. Class 10 and 12 results are read this way.
Engineering, science, and commerce universities use CGPA on a 10-point scale (or 4 in some cases). Each university converts CGPA back to a percentage using its own formula, which is why VTU and Anna University in the same state report two different percentages for the same CGPA.
This calculator handles both. We use the official formulas where they exist and the most-cited approximations where they do not. Your inputs live on your device. We do not see them and they are not sent anywhere.
Frequently asked
I am in Class 10 or Class 12. Which tab should I use?
School marks (out of 100). Indian school boards including CBSE, ICSE, and state boards report marks out of 100 per subject (with internals included in that 100). Class 10 CBSE moved away from CGPA in 2017–18 and now uses marks. The CGPA tab is for college and university.
What does best of 5 mean for CBSE?
CBSE Class 10 results show marks for each subject, and the standard percentage calculation uses your top 5 scoring subjects. If you took a 6th subject, it can replace any one of the main subjects with a lower score. The Best of 5 number on this tool does this for you automatically.
Are internal assessment marks included?
Yes. In CBSE, ICSE, and most state boards, the marks shown on your subject report card are already the total of board exam plus internal assessment, capped at 100. You enter the final per-subject mark and the tool treats internals as part of the total.
How is CGPA calculated?
Multiply the grade points of each subject by its credit hours, add them up, and divide by total credits. The result is your CGPA on the same scale as your grading system. SGPA is the same calculation, just for one semester. CGPA is the cumulative average across all semesters.
Why do CGPA-to-percentage formulas differ between universities?
Each university decides how to translate its grade points back to a percentage figure for transcripts. CBSE used 9.5x. VTU subtracts 0.75 first and then multiplies by 10. Mumbai University adds a constant. Anna University, BITS, IITs and NITs typically use a 10x rule. We use the official conversion for each option.
How accurate is the conversion to percentage?
The formula is correct, but the actual percentage on your transcript can vary slightly because of internal scaling, moderation, or rounding rules at the institution level. Use this for estimation. For job applications and admissions, always cite the percentage written on your final transcript.
Which board should I pick if my state has its own board?
Pick State Board. It uses 6 subjects with marks out of 100 and a straight total. The label covers Maharashtra HSC, Karnataka PUC and SSLC, Tamil Nadu HSC, UP Board, Bihar Board, Rajasthan Board, Gujarat Board, West Bengal HS, Kerala HSE, Andhra Pradesh and Telangana, and so on.
What is the difference between SGPA and CGPA?
SGPA is the grade point average for one semester. CGPA is the cumulative average across all your semesters, weighted by credits. To get SGPA, enter only one semester's subjects. For CGPA, enter all of them.
How do I use this for a US university application?
Pick Generic 4-point in CGPA mode for a rough conversion of your Indian CGPA to a 4-point GPA. Note that many US institutions do their own evaluation through services like WES. Always check the requirements of your target school.
Are my marks saved on a server?
No. Everything you enter stays in your browser using local storage. Nothing is sent to any server. You can clear it any time by clearing your browser data.