A weighted GPA adjusts the standard grade point average to reflect course difficulty. College Board notes that some schools use a weighted system in which courses such as AP and honors classes are assigned higher GPA points. On the usual unweighted 4.0 scale, an A is worth 4.0 points in any class; under weighting, the same A in an advanced course might be worth 4.5 or 5.0. Weighting rules are set locally by each school or district, so two weighted GPAs from different schools are not directly comparable, and College Board notes that colleges may recalculate GPAs using their own criteria.
Formula
Weighted GPA = ฮฃ (grade points + course bonus) ร credits รท ฮฃ credits
- Grade points: the unweighted value of the letter grade (A = 4, B = 3, C = 2, D = 1, F = 0).
- Course bonus: the extra points the school assigns to the course level, such as +0.5 or +1.0.
- Credits: the credit value of each course.
As one real example, one public school district's 2025โ26 program of studies adds 1.0 point to each year-long AP grade (A = 5.0) and 0.5 to each year-long honors grade (A = 4.5), gives half those bonuses for semester courses, and adds no weight to D or F grades.
Example
Four one-credit courses under that pattern:
| Course | Grade | Unweighted | Weighted |
|---|---|---|---|
| AP Calculus | A | 4.0 | 5.0 |
| Honors English | B | 3.0 | 3.5 |
| Chemistry | A | 4.0 | 4.0 |
| U.S. History | B | 3.0 | 3.0 |
- Unweighted GPA = 14.0 รท 4 = 3.50
- Weighted GPA = 15.5 รท 4 = 3.875
The GPA calculator handles both versions with credit hours, and the guide to calculating GPA covers plus and minus scales and cumulative GPA. Individual course grades can come from the grade calculator or the final grade calculator, explained in the final grade guide.
Common mistakes
- Reporting a weighted GPA where an application asks for unweighted, or the reverse.
- Assuming a fixed bonus. Check the school's program of studies for its own values and caps.