High School GPA Calculator
See your unweighted and weighted GPA side by side. Mark each course as regular, honors or AP/IB, adjust the bonus points to match your school, and get both numbers instantly.
🔒 Runs in your browser — the numbers you enter are not uploaded or stored. Results are estimates; your school’s own rules decide. Last reviewed: October 2026.
How to use the High School GPA Calculator
- Pick the grading scale and, if your school weights differently, change the honors and AP/IB bonus (the usual values are +0.5 and +1.0).
- For each course enter the credits (1 for a year-long class, 0.5 for a semester), the grade and the level.
- Read the weighted GPA, the unweighted GPA and the course-by-course table.
Weighted vs. unweighted GPA
An unweighted GPA treats every course the same: an A is 4.0 whether it is gym or physics. A weighted GPA adds bonus points for harder classes, so a B in an AP course can count the same as an A in a regular one. Because of the bonus, a weighted GPA can be higher than 4.0.
| Course level | Typical bonus | A becomes | B becomes |
|---|---|---|---|
| Regular | +0.0 | 4.0 | 3.0 |
| Honors / accelerated | +0.5 | 4.5 | 3.5 |
| AP / IB / dual enrollment | +1.0 | 5.0 | 4.0 |
Those numbers are the most common convention, not a rule. Some schools weight honors by +0.25, some cap the weighted GPA, and some use a 5.0 or 100-point scale. That is why the two bonus boxes are editable.
How the calculator works
Each course gets its grade points (A = 4.0, A− = 3.7 …). For the weighted GPA the level bonus is added — but only to passing grades, so an F in an AP class stays at 0.0. Then the points are multiplied by the credits and divided by the total credits:
Weighted GPA = Σ ((grade points + bonus) × credits) ÷ Σ credits
Which GPA do colleges use?
Admissions offices see the GPA your school reports, but many also recalculate it from your transcript — often unweighted, often counting only core academic subjects — so that applicants from different schools can be compared. Scholarship programs and the NCAA publish their own rules. Always check the definition used by the program you are applying to, and use this calculator to see each version.
Frequently asked questions
Can a weighted GPA be higher than 4.0?
Yes. With the usual +1.0 bonus, an A in an AP class is worth 5.0 and a student with all A’s in AP courses can reach 5.0.
How many credits should I enter for a class?
Most schools give 1.0 credit for a year-long course and 0.5 for a semester course. If your transcript lists credits, use those numbers.
Does my school’s weighted GPA match this result?
Only if it uses the same scale and bonus. Change the honors and AP/IB bonus fields, and check your school’s handbook for caps or special rules.
My school uses percentages. What now?
Convert each percentage to a letter grade using your school’s table first. If it has none, the percentage to GPA converter shows common methods.
Are grades stored anywhere?
No. Everything is calculated in your browser and disappears when you close the page.