What the bonus points do, and why admissions offices take them back out
| Unweighted | Weighted | |
|---|---|---|
| Maximum | 4.0 | 4.5, 5.0 or higher |
| Counts course difficulty | No | Yes, via bonus points |
| An A in AP Calculus | 4.0 | 5.0 (with a 1.0 bonus) |
| An A in regular Calculus | 4.0 | 4.0 |
| Comparable between schools | Reasonably | Poorly — bonus rules differ |
| Where it is used | Universities, most official records | Mainly US high schools |
The formula is the ordinary one, applied after each grade has been bumped for course level:
Because those rules are set school by school, weighted GPAs are not portable. A 4.3 from a school that weights every honours section is a different achievement from a 4.3 at a school that weights only AP courses — which is precisely why admissions offices strip the weighting out.
Five courses, one credit each, on a scale awarding +1.0 for AP and +0.5 for honours:
| Course | Level | Grade | Unweighted | Weighted |
|---|---|---|---|---|
| AP Calculus BC | AP | B | 3.0 | 4.0 |
| AP Biology | AP | B+ | 3.3 | 4.3 |
| Honours English | Honours | A− | 3.7 | 4.2 |
| US History | Regular | A | 4.0 | 4.0 |
| Spanish III | Regular | A | 4.0 | 4.0 |
| Average | — | — | 3.60 | 4.10 |
A half-point gap from the same five grades. The weighted figure rewards taking two AP courses; the unweighted figure records that both produced B grades. Neither is dishonest, and neither is complete on its own — which is the practical case for reading a transcript instead of a single number.
Most selective US universities recalculate. A common approach: drop non-academic courses, remove all weighting, and compute an unweighted academic GPA on a 4.0 scale. Course rigour is then assessed separately, by looking at how many advanced courses your school offered and how many you took.
The consequence is worth internalising. Loading up on AP courses to inflate a weighted GPA does not work, because the inflation gets removed while the B grades remain. What does work is taking demanding courses you can perform well in — the transcript shows both halves of that decision.
Report what your school issues, and label it. If your transcript shows a 4.18 weighted GPA on a 5.0 scale, write 4.18 / 5.0 (weighted). When an application asks specifically for unweighted, recalculate honestly rather than reusing the weighted number — the transcript is attached, so any mismatch is visible.
To produce an unweighted figure from a weighted transcript, strip every bonus, put each grade back on the 4.0 scale, and recompute the credit-weighted average. The calculator handles the arithmetic once you have the base grades.
Both, and often neither as reported. Most admissions offices recalculate your GPA from the transcript using their own formula, stripping out your school's weighting so applicants from different high schools can be compared on the same basis. Course rigour still counts — it is judged from the transcript itself rather than from the weighted number.
Yes. Weighted scales typically add 0.5 for honours and 1.0 for AP or IB courses, so a student with a heavy AP load can exceed 4.0 and reach 4.5 or 5.0 on some systems.
They are not directly comparable. A 4.2 weighted could sit on a transcript full of AP courses with several B grades, while a 3.9 unweighted means nearly all A grades. Admissions readers reconstruct both pictures from the transcript, so the honest comparison is grades plus rigour, not one number against another.
Rarely in the high-school sense. University GPAs are credit-weighted — heavier courses count more — but they almost never award bonus points for difficulty. That is a US high school convention.