How Does CGPA Work?
Complete guide to understanding CGPA, how it is calculated, and how it affects your academic record and future opportunities.
๐ What is CGPA?
CGPA stands for Cumulative Grade Points Average. It is a measure of a student's overall academic performance, calculated by taking the average of grade points obtained in all subjects across all semesters.
Unlike percentage, which is calculated on a 100-point scale, CGPA is typically calculated on a 10-point scale (in most Indian universities) or a 4-point scale (in some international systems).
โ๏ธ How is CGPA Calculated?
CGPA = (Sum of Grade Points) / (Number of Subjects)
CGPA = ฮฃ(Grade Point ร Credit Hours) / ฮฃ(Credit Hours)
Steps to Calculate CGPA:
- Step 1: Assign grade points to each letter grade (e.g., A=9, B=8, C=7, etc.)
- Step 2: Multiply each grade point by the credit hours of the subject
- Step 3: Sum all the weighted grade points
- Step 4: Divide by the total number of credit hours
๐ Step-by-Step Example
Problem: You scored the following grade points in 5 subjects with equal credits. What is your CGPA?
List the grade points
Subject 1: 8, Subject 2: 9, Subject 3: 7, Subject 4: 9, Subject 5: 8
Sum all grade points
8 + 9 + 7 + 9 + 8 = 41
Divide by number of subjects
41 รท 5 = 8.2
โ Answer: Your CGPA is 8.2
๐ CGPA to Percentage Conversion
Different institutions use different formulas to convert CGPA to percentage:
CBSE Formula (10-point scale):
Percentage = CGPA ร 9.5
4.0 Scale:
Percentage = (CGPA / 4) ร 100
Some International Universities:
Percentage = CGPA ร 25 (on a 4.0 scale)
โ ๏ธ Always verify with your institution's official conversion formula.
๐ฏ Key Takeaways
- CGPA is on a 10-point scale (India) or 4-point scale (international)
- CGPA = (Sum of Grade Points) / (Number of Subjects)
- CGPA is cumulative across all semesters
- Different institutions have different CGPA-to-percentage formulas
- Always check your university's official grading policy
โ Frequently Asked Questions
SGPA (Semester Grade Points Average) is calculated at the end of each semester, while CGPA (Cumulative Grade Points Average) is the average of all semesters combined.