How to use the GPA calculator
Choose your school’s scale (4.0, 4.3 or 4.5), then enter credits and a letter grade for each course. Your GPA updates instantly. Tick Major on major courses to get a separate major GPA. Course names are optional.
Add terms with + Term and switch between them with the tabs. The Cumulative tab combines every term and lists each term’s GPA. Everything is saved automatically in your browser, so it is still there next semester.
- Pass/No Pass: a P adds to credits earned but is left out of the GPA; an NP counts toward neither.
- F counts as 0 points in the GPA and earns no credits.
- Turn on Weighted GPA to add a common +0.5 (Honors) or +1.0 (AP/IB) bonus to passing grades. Weighting rules differ by school district, so check yours.
How GPA is calculated
For each course, multiply the credits by the grade points, add those up, and divide by the total credits that count toward GPA. Heavier courses therefore move your GPA more.
Example on the 4.0 scale: 3 credits of A (4.0), 4 credits of B+ (3.3) and 3 credits of A− (3.7) give (12 + 13.2 + 11.1) ÷ 10 = 3.63.
Cumulative GPA is not the average of your term GPAs. It is the total quality points of all terms divided by all GPA credits, so terms with more credits carry more weight.
Default grade-point tables
These are widely used defaults. Your school may differ — edit them under Edit grade points.
- 4.0 scale: 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
- 4.3 scale: same as above but A+ 4.3 (letters shown as A0, B0… as on Korean transcripts)
- 4.5 scale (common in Korea): A+ 4.5, A0 4.0, B+ 3.5, B0 3.0, C+ 2.5, C0 2.0, D+ 1.5, D0 1.0, F 0
Converting GPA between scales
The simplest conversion is proportional: GPA ÷ original maximum × new maximum. A 3.8 on a 4.5 scale becomes about 3.38 on a 4.0 scale.
This is only one method. Graduate schools, employers and credential evaluation services frequently use their own tables, and many ask you to report your GPA on its original scale. When an application states a method, use that. Percentage conversions also differ by institution, so this tool does not offer one.
Planning for a target GPA
Enter a target cumulative GPA and the credits you still have left. The calculator shows the average you need: (target × total credits − current quality points) ÷ remaining credits. If the number is above the scale maximum, the target cannot be reached with those credits alone.
FAQ
How do I calculate my GPA?
Multiply each course’s credits by its grade points, add them up, and divide by the total GPA credits. For 3 credits of A (4.0) and 2 credits of B (3.0): (12 + 6) ÷ 5 = 3.6.
Do Pass/Fail courses affect GPA?
Usually a Pass earns credits but is excluded from GPA, while a Fail in a graded course counts as 0. This calculator follows that convention; check your school’s policy.
What is a weighted GPA?
Many high schools add extra points for harder classes, commonly +0.5 for Honors and +1.0 for AP or IB. Turn on Weighted GPA to apply those bonuses; the exact rules vary by school.
How do I convert a 4.5 or 4.3 GPA to a 4.0 scale?
Proportionally, divide by the original maximum and multiply by 4.0: 3.8 on 4.5 ≈ 3.38 on 4.0. Institutions may use their own tables, so follow theirs when given.
Is cumulative GPA the average of my semester GPAs?
No. It is all quality points divided by all GPA credits, so it differs from a simple average when terms have different credit loads.
Where is my data stored?
Only in your browser’s local storage. Nothing is uploaded. Use Copy result to keep a record elsewhere.