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Weighted vs. Unweighted GPA, Explained
AP & GPA Success Hub · Updated July 2026
Few numbers cause more confusion at kitchen tables than GPA — mostly because there are two of them, they're computed differently at every school, and colleges quietly use a third version of their own.
Unweighted: the common yardstick
An unweighted GPA treats every course the same on a 4.0 scale — an A is worth 4.0 whether it was earned in ceramics or AP Chemistry. Most schools map letter grades roughly as A = 4.0, B = 3.0, C = 2.0, with pluses and minuses shading between them.
Weighted: rewarding rigor
A weighted GPA adds bonus value for harder courses. A common convention — though far from universal — adds about half a point for Honors and a full point for AP:
| Course level | A | B | C |
|---|---|---|---|
| Standard (4.0 scale) | 4.0 | 3.0 | 2.0 |
| Honors (commonly +0.5) | 4.5 | 3.5 | 2.5 |
| AP (commonly +1.0) | 5.0 | 4.0 | 3.0 |
Individual high schools genuinely differ — some weight on a 6.0 scale, some use percentages, some weight only certain courses. The school handbook or counseling office documents the exact system, and that local document beats any general table, including this one.
A worked example
A sophomore carrying five courses — two Honors, three standard — with four As and one B in an Honors course:
- Unweighted: (4.0 + 4.0 + 4.0 + 4.0 + 3.0) ÷ 5 = 3.80
- Weighted (+0.5 Honors): (4.5 + 3.5 + 4.0 + 4.0 + 4.0) ÷ 5 = 4.00
The hub's interactive Weighted GPA Calculator computes both versions of this math for any schedule — free, in the browser, with nothing stored.
Frequently asked questions
What is a good weighted GPA?
It depends entirely on the school's scale — a 4.3 could be outstanding on one system and mid-range on another. Colleges know this, which is why they read GPA alongside the school profile rather than as a standalone number.
Can a weighted GPA be above 4.0?
Yes — that's the point of weighting. On the common +1.0 AP convention, a straight-A student in mostly AP courses can carry a weighted GPA approaching 5.0, while their unweighted GPA stays at 4.0.
Do colleges prefer weighted or unweighted GPA?
Neither, exactly. Many recalculate GPA under their own formula and lean on course rigor and grade trends. Both of your school's numbers are honest inputs; neither is the final word.
Does a B in an AP course hurt more than a B in a standard course?
On a weighted scale it often costs the same or less — a common convention scores an AP B like a standard A. Admissions-wise, a B earned in genuine challenge generally reads better than an easy A.
Questions about your student's course plan?
Every family's situation is different — school policies, graduation requirements, and a student's own goals all shape the right course load. Families are welcome to bring AP and course-selection questions to a free consultation: a conversation with an educator, not a sales call.