GPA Calculator
Calculate your Grade Point Average (GPA) from grades and credits. Support for standard 4.0 scale.
Your GPA
3.39
10 credits, 33.9 grade points
Grade Distribution
Last updated: February 2026
How this calculator is verified
Checked by True Calculator automated test suite on
- Formula verified against a published worked example in the automated test suite
- Edge cases (zero, negative, boundary and unit-mismatch inputs) covered by unit tests
The full verification method is on our how we verify page. Found an error? Tell us and we will re-check it.
When to Use This Calculator
A student in Coimbatore finished three courses: a 4-credit subject with an A grade, worth 4.0 on the standard scale; a 3-credit subject with a B, worth 3.0; and a 3-credit subject with a C, worth 2.0. Entering these, the calculator counts 10 credits in total. The grade points are 4 times 4, plus 3 times 3, plus 3 times 2, which is 31. Dividing 31 by 10 credits gives a GPA of 3.1 on the 4.0 scale. Many Indian universities use a 10-point scale instead, so choose the matching scale before entering grades.
How to Use This Calculator
- Step 1: Enter each course with its credit value and the grade you received.
- Step 2: Choose the grading scale, such as the standard 4.0 scale, before adding courses.
- Step 3: Add every course from the term or semester to the list.
- Step 4: Read the GPA, which is total grade points divided by total credits, and review the credit total shown.
Worked Example
A student in Coimbatore finished three courses: a 4-credit subject with an A grade, worth 4.0 on the standard scale; a 3-credit subject with a B, worth 3.0; and a 3-credit subject with a C, worth 2.0. Entering these, the calculator counts 10 credits in total. The grade points are 4 times 4, plus 3 times 3, plus 3 times 2, which is 31. Dividing 31 by 10 credits gives a GPA of 3.1 on the 4.0 scale. Many Indian universities use a 10-point scale instead, so choose the matching scale before entering grades.
Tips and Common Mistakes
- •Tip 1: Confirm whether your college uses a 4.0 scale, a 10-point scale or a custom one, since the same grades produce different GPAs.
- •Tip 2: Higher-credit courses weigh more, so a low grade in a 4-credit subject pulls the GPA down more than in a 1-credit one.
- •Tip 3: Check the credit total before trusting the GPA, because a mistyped credit changes the denominator and the result.
- ✗Mistake 1: Averaging grade points without credits, which ignores how much each course is worth.
- ✗Mistake 2: Mixing letter grades from different scales, such as an A on a 4.0 scale with an A on a 10-point scale, in one calculation.
Frequently Asked Questions
How is my GPA calculated?
Each grade is converted to grade points (A = 4.0, B = 3.0, C = 2.0 on the standard scale), multiplied by the course credits, summed, and divided by the total credits. Three courses of 4, 3 and 3 credits graded A, B and C give (16 + 9 + 6) ÷ 10 = 3.1.
Which scale should I use — 4.0 or 10.0?
Use the 4.0 scale for applications to US and most international universities, and the 10.0 scale when your Indian college reports CGPA on 10 points. Match the scale to the one printed on your transcript so the number is comparable.
How do I convert my CGPA to a percentage?
Many Indian institutions use the CBSE formula percentage = CGPA × 9.5. A CGPA of 8.2 converts to about 78%. Since some universities follow different conversions, confirm the official rule of your college before quoting it anywhere.
Why is my GPA not the simple average of my grades?
Because credits act as weights. A low grade in a 4-credit subject pulls the GPA down far more than the same grade in a 1-credit subject, so grade points must be credit-weighted rather than plainly averaged.
Can the calculator handle percentage-based grades?
Yes. It supports percentage-based grading with configurable grade bands, which matches how many Indian schools and universities report subject scores. Set the bands to your institution's pass and distinction cutoffs for an accurate result.
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