🎓 GPA Calculator
Add your courses with credits and letter grades to get your semester GPA on the standard 4.0 scale — and project your new cumulative GPA.
| Letter grade | Grade points (unweighted 4.0 scale) |
|---|---|
| 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 |
| F | 0.0 |
How to use the GPA Calculator
Enter each course credit and grade to get your GPA on the 4.0 scale, with an option to see what a different grade in one course would do.
How it works
GPA is a credit-weighted average: each grade earns grade points, those are multiplied by the course credits, and the sum is divided by total credits. The credit weighting matters. A four-credit course carries four times the influence of a one-credit course, so a strong grade in a heavy term matters more than several easy ones. Schools also differ on whether they include credit-bearing courses in the denominator.
When to use it
Use it to check your standing before a term ends, to see which course is worth the most effort, and to estimate what final grades you need for a target.
Worked example
Current GPA versus target:
| Courses | Credits | Grade points | Contribution |
|---|---|---|---|
| Calculus | 4 | 3.7 | 14.8 |
| Physics lab | 5 | 3.3 | 16.5 |
| History | 3 | 4.0 | 12.0 |
| Total | 12 | — | 43.3 ÷ 12 = 3.61 |
Assumptions and limitations
Grading scales differ by institution and some use plus or minus; check your own policy. Weighted GPA for honours programmes and graduate applications uses a different calculation that this tool does not perform. Pass or fail courses and independent study often do not count toward GPA. Verify against your registrar.
Frequently Asked Questions
How is GPA calculated?
Multiply each course's grade points by its credit hours, add those up, then divide by the total credits. Example: an A (4.0) in a 3-credit course plus a B+ (3.3) in a 4-credit course gives (12.0 + 13.2) ÷ 7 ≈ 3.60 GPA.
What is a good GPA?
On the 4.0 scale, 3.0 or higher is generally considered solid, and many scholarships, honor societies and graduate programs look for 3.5+. What counts as "good" depends on your school and your goals — some competitive internships screen at 3.2–3.5.
Does this calculator handle weighted AP/IB grades?
It uses the standard unweighted 4.0 scale used by most US colleges. If your high school weights AP or IB courses above 4.0, this tool won't reflect that bonus — enter your grades on the unweighted scale, or use your school's weighted point values if it reports them that way.
Do pass/fail courses count toward GPA?
Usually not. Pass/fail credits typically don't enter the GPA calculation (though they may still count toward graduation requirements), so leave them out of the courses above.
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