GPA Calculator
Enter each course grade and its credit hours to calculate your grade point average on a 4.0 scale, with the total credits and quality points.
- Multiply each course grade point by its credits, then add: 36.3 quality points.
- Add the credits: 10 total credits.
- Divide: 36.3 / 10 = 3.63.
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All calculations run locally in your browser. Your entered values are not sent to an external service.
How to Use the GPA Calculator
Add a row for each course, choose the letter grade, and enter the credit hours. The calculator multiplies each grade’s points by its credits, adds them into total quality points, and divides by the total credits.
- Select the letter grade for each course.
- Enter the credit hours for each course.
- Use Add Course for more rows, then select Calculate GPA.
This tool uses the common unweighted 4.0 scale. Honors or AP courses at some schools add extra weight, so confirm your institution’s policy before comparing results. For a general weighted mean that is not letter grades, use the Weighted Average Calculator. For the score you need on one remaining exam, use the Final Grade Calculator.
Letter Grade to Grade Point Scale
| Grade | Points | Grade | Points |
|---|---|---|---|
| A+ / A | 4.0 | C+ | 2.3 |
| A- | 3.7 | C | 2.0 |
| B+ | 3.3 | C- | 1.7 |
| B | 3.0 | D+ / D / D- | 1.3 / 1.0 / 0.7 |
| B- | 2.7 | F | 0.0 |
Grade point values can vary slightly between schools. Some treat A+ as 4.3, and some do not use plus or minus grades at all. Adjust the credits and grades to match your transcript.
The GPA Formula
Quality points for a course equal its grade points multiplied by its credit hours. A 4-credit A is 4.0 × 4 = 16 quality points, while a 3-credit B is 3.0 × 3 = 9 quality points. GPA is the total quality points divided by the total credits attempted.
Because credits weight the average, a high grade in a large course affects GPA more than the same grade in a small course. This is why GPA is a weighted average rather than a simple average of the grade points.
GPA Calculator Examples
Three courses
An A (4.0) in 3 credits, a B+ (3.3) in 4 credits, and an A- (3.7) in 3 credits give quality points 12 + 13.2 + 11.1 = 36.3 over 10 credits, a GPA of 3.63.
Adding a low grade
Adding a C (2.0) in 4 credits gives 36.3 + 8 = 44.3 quality points over 14 credits, lowering the GPA to about 3.16. Larger courses move the average more.
Semester vs cumulative
A semester GPA uses only that term’s courses. A cumulative GPA combines every term by adding all quality points and dividing by all credits, not by averaging the term GPAs.
Common GPA Mistakes
Averaging grade points without credits
GPA weights each grade by its credit hours. Do not average the grade points directly unless every course has the same credits.
Averaging semester GPAs for a cumulative GPA
Combine total quality points and total credits across all terms instead of averaging the term GPAs.
Mixing weighted and unweighted scales
Decide whether honors or AP weighting applies and use the same scale for every course.
Ignoring pass or fail courses
Courses graded pass or fail usually do not carry grade points and may be excluded from GPA.
Using the wrong grade point values
Confirm your school’s exact values, especially for A+, since some cap the scale at 4.0 and some allow 4.3.
GPA Calculator FAQs
How is GPA calculated?
Multiply each course’s grade points by its credits to get quality points, add them, and divide by the total credits.
What scale does this use?
The common unweighted 4.0 scale, where A is 4.0, B is 3.0, C is 2.0, D is 1.0, and F is 0.0, with plus and minus adjustments.
How do I find a cumulative GPA?
Add the quality points and credits from every term and divide, rather than averaging each term’s GPA.
Do credits matter?
Yes. GPA is a credit-weighted average, so larger courses affect the result more than smaller ones.
Can grade point values differ by school?
Yes. Some schools treat A+ as 4.3 or omit plus and minus grades. Use the values your institution publishes.
Are my grades sent to a server?
No. The calculation runs locally in your browser.
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Reviewed by Prof. Dr. Khalil Mudassar (PhD) · Last updated: [mc_modified_date]
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Disclaimer
This calculator is for general educational use and estimates GPA on a standard 4.0 scale. Your official GPA is determined by your institution’s grading policy.