GPA Calculator
Add your courses, credit hours, and grades to get your weighted GPA on the standard 4.0 scale.
Formula verified July 2026
Your GPA
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0 total credit hours
How this GPA calculator works
Add each course you’re taking, its credit hours, and the letter grade you earned (or expect to earn). The calculator weights every grade by its credit hours and returns your overall GPA on the standard 4.0 scale used by most US colleges and high schools.
The GPA formula
GPA = Σ(Credit Hours × Grade Points) ÷ Σ(Credit Hours)This is a weighted GPA calculation: a 4-credit A carries more weight than a 1-credit A, because it contributes more grade points to the total.
Standard 4.0 grade point scale
| Letter grade | Grade points |
|---|---|
| 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 | 1.0 |
| F | 0.0 |
Step-by-step: how to calculate your GPA
- List every course, its credit hours, and the letter grade earned.
- Convert each letter grade into grade points using the table above.
- Multiply each course’s credit hours by its grade points.
- Add up all of those results, then add up the total credit hours.
- Divide the total grade points by the total credit hours.
Worked example
| Course | Credits | Grade | Grade points | Credits × Points |
|---|---|---|---|---|
| Biology 101 | 4 | A | 4.0 | 16.0 |
| English Comp | 3 | B+ | 3.3 | 9.9 |
| Calculus I | 4 | B | 3.0 | 12.0 |
Total credits = 4 + 3 + 4 = 11. Total credit-weighted points = 16.0 + 9.9 + 12.0 = 37.9. GPA = 37.9 ÷ 11 = 3.45.
Common GPA mistakes
- Averaging grade points without weighting by credits. A 1-credit seminar and a 4-credit core class shouldn’t count equally.
- Using the wrong scale. Some schools use a 4.3 or 5.0 scale, or add extra points for honors/AP classes (weighted GPA) — confirm your school’s scale before comparing.
- Forgetting to include repeated or failed courses per your school’s specific repeat-grade policy.
- Mixing semester GPA with cumulative GPA when reporting on applications; always check which one is being asked for.
Tips for raising your GPA
- Higher-credit courses affect your GPA more, so prioritize your strongest effort there.
- Check whether your school allows grade replacement for retaken courses.
- Calculate your GPA needed for a target average before your next exam so you know exactly what score you need.
- Talk to your advisor about course withdrawal policies if a grade is at serious risk of dragging your GPA down.
What’s the difference between weighted and unweighted GPA?
Unweighted GPA uses a standard 4.0 scale regardless of course difficulty. Weighted GPA gives extra grade points (often up to 5.0) for honors, AP, or IB courses to reflect their added difficulty.
Does a pass/fail or credit/no-credit class affect my GPA?
Usually not. Most schools exclude pass/fail courses from GPA calculations entirely, though the credit hours may still count toward your total for graduation requirements. Check your school’s specific policy.
How do I calculate my cumulative GPA across multiple semesters?
Add up the total credit-weighted grade points from every semester, add up your total credit hours across all semesters, then divide, exactly the same formula, just using your entire academic history instead of a single term.
What GPA scale do most US colleges use?
Most US colleges and universities use a 4.0 unweighted scale, though some high schools use a 4.3 or 5.0 weighted scale for honors and AP courses.