An unweighted GPA scores every course the same way — an A is 4.0 whether it's gym or AP Physics — and tops out at 4.0. A weighted GPA adds bonus points for harder classes, commonly +0.5 for Honors and +1.0 for AP or IB, so an A in an AP class can count as 5.0 and the overall GPA can climb above 4.0.
Key takeaways
- Unweighted: A = 4.0 always; maximum 4.0.
- Weighted: Honors +0.5, AP/IB +1.0 → can exceed 4.0.
- Only the weighted GPA can be above 4.0.
- Colleges often recalculate; both numbers are read in context.
- Bonus amounts vary by school — confirm your district's policy.
How each one is built
Both start from the same base: letters become grade points (A = 4, B = 3, C = 2, D = 1, F = 0), each multiplied by credit hours and averaged — the method in the how GPA is calculated guide. The difference is a bonus added before averaging on weighted GPA:
So an A is worth 4.0 unweighted, 4.5 in an Honors class, and 5.0 in an AP class. A B in AP is 3.0 + 1.0 = 4.0. The weighted GPA calculator applies these bonuses, and the GPA calculator gives the plain unweighted figure.
Worked comparison: same student, two GPAs
A student takes four 1-credit courses: AP Calculus (A), Honors English (A), Regular Biology (B), Regular Art (A). Here is how each grade is scored:
| Course | Type | Letter | Unweighted | Weighted |
|---|---|---|---|---|
| AP Calculus | AP | A | 4.0 | 5.0 |
| English | Honors | A | 4.0 | 4.5 |
| Biology | Regular | B | 3.0 | 3.0 |
| Art | Regular | A | 4.0 | 4.0 |
| GPA | 3.75 | 4.13 |
Identical grades, two stories: the unweighted 3.75 shows the raw result, while the weighted 4.13 reflects the AP and Honors load. Neither is "right" — they answer different questions.
Which one do colleges use?
It depends on the college. Many admissions offices recalculate your GPA on their own scale — sometimes unweighted, sometimes with their own weighting — and always read it next to your transcript and the rigor of your courses. The practical takeaway: keep your unweighted GPA strong and challenge yourself with weighted courses, then check each college's stated policy.
Frequently asked questions
What is the difference between weighted and unweighted GPA?
Unweighted GPA treats every course the same (A = 4.0, max 4.0). Weighted GPA adds bonuses for rigor — typically +0.5 Honors, +1.0 AP/IB — so an AP A can count as 5.0 and the GPA can exceed 4.0.
Can a GPA be higher than 4.0?
Only a weighted GPA can exceed 4.0, thanks to Honors/AP bonus points. An unweighted GPA caps at 4.0.
Do colleges use weighted or unweighted GPA?
It varies — many colleges recalculate GPA on their own scale and read it with your transcript. Both numbers matter: unweighted shows raw performance, weighted shows rigor. Confirm what each college uses.
Sources: the +0.5 Honors and +1.0 AP/IB bonuses reflect the most common US high-school weighting convention; the base 4.0 scale (A=4 … F=0) is standard. Actual bonus values, which courses qualify, and whether colleges recalculate vary by school and institution — confirm with your counselor and each college.
Last reviewed 2026-06-28