College GPA Calculator
Calculate your semester GPA from course credits and grade points.
GPA = Σ(grade points × credits) ÷ Σ credits. Use your university's grade-point values (e.g. O=10, A+=9, A=8… on a 10-scale, or A=4, B=3… on a 4-scale).
How Course Credits and Grades Make a GPA
Each course contributes its grade points × credits; your GPA is the total divided by total credits: GPA = Σ(grade points × credits) ÷ Σ credits. A 4-credit core course therefore moves your GPA twice as much as a 2-credit elective — which is why protecting grades in high-credit courses matters most.
Common Grade-Point Scales
| Grade | 10-point (India) | 4-point (US) |
|---|---|---|
| O / A | 10 | 4.0 |
| A+ / A− | 9 | 3.7 |
| A / B+ | 8 | 3.3 |
| B+ / B | 7 | 3.0 |
| B / C | 6 | 2.0 |
This gives you one semester's SGPA — feed those into the SGPA to CGPA Calculator across semesters, then express the result as a percentage with the SGPA to Percentage tool.
Frequently Asked Questions
How is GPA calculated from credits and grades?
GPA = sum of (grade points x course credits) / total credits. A 4-credit course influences your GPA twice as much as a 2-credit one.
What grade points should I enter?
Use your university's scale — commonly O=10, A+=9, A=8, B+=7 on the Indian 10-point scale, or A=4, B=3, C=2 on the US scale. The calculator works with either.
Does this calculator work for both semester GPA and CGPA?
It computes the GPA of whatever courses you enter. Enter one semester's courses for SGPA; to combine semesters into a CGPA, use our SGPA to CGPA calculator.
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