Credit-weighted, not course-counted
A 4-credit A outweighs a 1-credit A. Simple averages of letters get this wrong.
Tools / GPA Calculator
GPA Calculator
Enter each course’s grade points (4.0 scale) and credit hours. Get your credit-weighted GPA instantly.
GPA = Σ (grade points × credits) ÷ Σ credits
Choose a letter to fill grade points, or Custom points for your school’s scale.
Enter values to see the result
- 1
Add each course
Name it if you like, then enter grade points (for example 4.0, 3.7, 3.0) and credit hours.
- 2
Use your school’s point map
Convert each letter to points with your catalog (A = 4.0, A− = 3.7 is common). Or use our letter table as a guide.
- 3
Read the GPA
GPA = Σ(points × credits) ÷ Σ(credits), the same weighted average registrars use.
Why calculate GPA this way
Transcripts weight courses by credit hours, not by a simple average of letter grades.
Semester or cumulative
Enter one term’s courses, or every course that counts toward your cumulative GPA.
Any positive credit scale
Hours, units, or ECTS-style credits all work as long as you stay consistent.
When to calculate GPA
End-of-term check
Estimate semester GPA before grades post.
What-if planning
Model how a stronger grade in a heavy course moves the average.
Transfer and applications
Recompute on a 4.0 scale when schools ask for it.
GPA formula
GPA = Σ (grade points × credit hours) ÷ Σ credit hours
Same algebra as a weighted average. Leave unfinished courses out rather than entering zeros.
Tips
- Copy credit hours from the transcript or registration page.
- Use quality points from your school if they print them.
- For one class’s percent → letter → points, use the letter grade tool first.
Related calculators
Frequently asked questions
How is GPA calculated?
Multiply each course’s grade points by its credit hours, add those products, then divide by total credits.
Example: 4.0 × 3 credits and 3.0 × 4 credits → (12 + 12) ÷ 7 ≈ 3.43 GPA.
What grade points should I enter for each letter?
Use your school’s catalog. A common US map is A+/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 = 0.0.
Convert a percentage first with the letter grade calculator if you only have a percent.
Does this handle weighted (honors / AP) GPA?
Enter the weighted points your school assigns (for example 5.0 for an A in AP). The formula is the same; only the point values change.
How is this different from a class grade calculator?
This page averages courses by credits. The class grade calculator averages assignments inside one course by syllabus weight.
Are my grades stored?
No. Everything runs locally in your browser.
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