Learning how to calculate CGPA in SRM starts with one simple idea: every subject counts, but not equally. A four-credit subject moves your average more than a two-credit subject, so a strong grade in a heavy subject is worth more than the same grade in a lighter one. That is why students who only average their letter grades often get a different number from the university. In this guide, you will learn the SRM formula step by step, see a worked example, and avoid the small errors that most often change the result. To check your own numbers as you read, try the SRM CGPA Calculator and enter your grades there.
The Formula
CGPA = total grade points divided by total credits. In full, that is CGPA = sum of (credits multiplied by grade point) divided by sum of credits. The numerator is the part many students rush: for each subject, multiply its credits by the grade point for its letter grade, then add those products together. The denominator is simpler, because it is just all the credits added together, including credits for a failed subject until it is cleared.
Each term has a plain meaning. Credits show how much weight a subject carries in the semester. The grade point turns a letter grade into a number, so different grades can be averaged fairly. The sum in the numerator is the total of all those weighted numbers, and the sum in the denominator is the total weight.
At SRM, the commonly published grade points are: O = 10, A+ = 9, A = 8, B+ = 7, B = 6, C = 5, P = 4, and F = 0. Keep that order in mind, because a single step down in grade, such as from A to B+, lowers the grade point by one and therefore lowers the product for that subject.
How to Calculate CGPA in SRM Step by Step
Work through your subjects in the same order every time, so you can spot a copying error before it reaches the final division.
Step 1: Collect your credits and grades. Write down each subject, its credits from your timetable or result sheet, and the letter grade you received. Do not use expected grades for a finished semester.
Step 2: Convert each grade to its grade point. Use O = 10, A+ = 9, A = 8, B+ = 7, B = 6, C = 5, P = 4, and F = 0. Double-check any grade that sits on a boundary in your mind, because the letter on the result sheet is what counts.
Step 3: Multiply credits by grade point for each subject. This gives the weighted points for that subject. Keep each product on its own line so you can add them without confusion.
Step 4: Add all the products, then add all the credits. The first total is your total grade points, and the second total is your total credits for the set of subjects you are averaging.
Step 5: Divide total grade points by total credits, and round to two decimal places. That result is your CGPA for those subjects. If you are combining semesters, use all subjects across those semesters in the same way, not an average of semester CGPAs.
Worked Example
Take four subjects with the same values used in the tool page example: 4 credits with grade O, 3 credits with grade A+, 4 credits with grade A, and 2 credits with grade B+.
First, convert each grade: O is 10, A+ is 9, A is 8, and B+ is 7. Then multiply: 4 multiplied by 10 is 40, 3 multiplied by 9 is 27, 4 multiplied by 8 is 32, and 2 multiplied by 7 is 14.
Add the products: 40 + 27 + 32 + 14 = 113 total grade points. Add the credits: 4 + 3 + 4 + 2 = 13 total credits. Finally, divide: 113 divided by 13 = 8.69, rounded to two decimal places. That is the CGPA for this set of subjects.
Common Mistakes / Good to Know
Averaging the grade points without weighting by credits is the most common error. A simple average of 10, 9, 8, and 7 is 8.50, which is not the same as the correct weighted result of 8.69, because the subjects do not all carry the same credits.
Leaving out a failed subject is another error. An F gives 0 grade points, but its credits still belong in the denominator until the subject is cleared, so leaving it out will make the CGPA look higher than it should.
Rounding too early can also shift the answer. Keep the full division result while you work, and round only at the end to two decimal places.
Finally, remember that each university’s official scale and transcript is final. Use this guide and the tool page scale to check your working, but for any official application, use the grade points and conversion shown on your SRM transcript or official notice.
Frequently Asked Questions
How is CGPA calculated in SRM?
Multiply each subject’s credits by its grade point, add those products to get total grade points, add all the credits, and divide total grade points by total credits. At SRM, the grade points are O = 10, A+ = 9, A = 8, B+ = 7, B = 6, C = 5, P = 4, and F = 0.
How do I convert SRM CGPA to percentage?
A commonly used estimate is CGPA multiplied by 9.5. For example, a CGPA of 8.69 gives about 82.6 percent. For official use, always follow the conversion given on your SRM transcript or official notice, because that is the final record.
Does a failed subject count in SRM CGPA?
Yes. A failed subject gives 0 grade points, but its credits still count in the total credits until the subject is cleared. Leaving it out would make the CGPA look higher than it should be.
What is the difference between GPA and CGPA at SRM?
GPA usually covers one semester, while CGPA covers all the subjects across the semesters you include, weighted by credits. To get a CGPA for several semesters, pool all those subjects and use the same formula, rather than averaging the semester GPAs.
For a quick check with your own grades, use the VIT CGPA Calculator and read the related guide How to Calculate CGPA in VIT: Formula and Example.