Weighted and unweighted GPA answer different questions. The unweighted number summarizes the grades earned without giving extra points for course level. The weighted number attempts to represent both grades and academic difficulty.
The difference in one table
| Question | Unweighted GPA | Weighted GPA |
|---|---|---|
| Common top value | 4.0 | Often 4.5, 5.0, or higher |
| Course rigor bonus | None | May add points for Honors, AP, IB, or dual enrollment |
| Best use | Compare grade performance on one scale | Review grades together with course difficulty |
| Universal formula | No | No |
The word often matters. There is no single national weighted scale. College Board materials note that high schools calculate GPA in different ways, and colleges may remove or replace a high school's weighting when reviewing applications.
The same four courses, two results
This worked example uses a common local policy: Honors adds 0.5 and AP / IB adds 1.0. All four courses carry one credit.
| Course | Grade | Unweighted points | Bonus | Weighted points |
|---|---|---|---|---|
| English 11 | A- | 3.70 | 0.00 | 3.70 |
| AP Biology | B+ | 3.30 | 1.00 | 4.30 |
| Algebra II Honors | A | 4.00 | 0.50 | 4.50 |
| US History | B | 3.00 | 0.00 | 3.00 |
| Total | 14.00 | 15.50 |
Why weighted scales vary
A school can choose which courses receive weight and how much. Some add 1.0 for both AP and Honors. Some add 1.0 for AP but 0.5 for Honors. Others use a separate grade table instead of a flat bonus.
- A B in an AP course might be worth 4.0, 4.3, or another value depending on policy.
- An honors course approved at one school may be treated as regular at another.
- Some schools cap weighted points at 5.0. Others allow a higher maximum.
- Some GPAs include every class. Others use academic core courses only.
AP course grade is not the AP Exam score
The classroom grade is used in a high school's GPA according to local policy. The separate AP Exam score runs from 1 to 5 and is used by colleges for their own credit or placement decisions.
Which GPA do colleges use?
There is no universal answer. Colleges receive the transcript and school profile, then may use the reported GPA or recalculate it. College Board guidance explains that some colleges focus on core subjects, remove noncore courses, or standardize the weighting used by different high schools.
For planning, keep both numbers. Use unweighted GPA to understand the grade pattern. Use weighted GPA to model the policy printed by your high school. Do not assume either number reproduces an admission office's internal calculation.
Which number should you enter on a form?
Follow the form's instructions. If it asks for the GPA exactly as reported, copy the transcript and select the corresponding scale. If it asks for unweighted GPA and your transcript only shows weighted GPA, ask your counselor rather than trying to reverse the weighting from the final number.