GPA Calculator
Add each course with its letter grade and credits. The calculator returns your unweighted and weighted GPA, and can combine the result with your existing cumulative GPA.
Result
- Total credits
- 14
- Quality points
- 49
Grade points: A and A+ 4.0, A− 3.7, B+ 3.3, B 3.0, B− 2.7, C+ 2.3, C 2.0, C− 1.7, D+ 1.3, D 1.0, D− 0.7, F 0. Schools differ in how they weight honors and AP classes, and some count an A+ as 4.3.
Formula
- GPA = Σ (grade points × credits) ÷ Σ credits
- Weighted GPA adds 0.5 for honors and 1.0 for AP or IB courses before multiplying
- Cumulative GPA = (old GPA × old credits + new quality points) ÷ total credits
How the GPA Calculator works
Grade point average is the credit-weighted mean of your grade points. Each letter grade maps to a number on the 4.0 scale. Multiply by the credits of the course to get quality points, add them, and divide by total credits.
A weighted GPA rewards harder classes by adding half a point for honors and a full point for AP or IB courses, so it can exceed 4.0. Colleges often recalculate GPA with their own rules.
Worked example
English A (3 credits), Math B+ (4), Science A− (4) and History B (3): quality points = 4.0 × 3 + 3.3 × 4 + 3.7 × 4 + 3.0 × 3 = 49. With 14 credits the GPA is 49 ÷ 14 = 3.50.
Frequently asked questions
What is the difference between weighted and unweighted GPA?
Unweighted GPA treats every class the same on a 4.0 scale. Weighted GPA adds extra points for honors, AP and IB classes, so the maximum is usually 5.0.
How do I calculate my cumulative GPA?
Multiply your current GPA by the credits you have completed, add this term's quality points and divide by the new total of credits. Enter the first two values in the optional fields.
How do I convert a percentage to a 4.0 GPA?
Convert the percentage to a letter grade first, then to grade points. On the common scale, 93 and above is 4.0, 90 to 92 is 3.7, 87 to 89 is 3.3 and 83 to 86 is 3.0.
Related calculators
- Grade CalculatorCalculate your weighted course grade from assignment scores and their weights. Shows the percentage, letter grade and remaining weight.
- Final Grade CalculatorFind the score you need on your final exam to reach a target course grade, from your current grade and the weight of the final.
- Test Score CalculatorTurn the number of questions and wrong answers into a percentage and letter grade. Includes an easy grader chart for the whole test.
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