Weighted vs. Unweighted GPA: What's the Difference?
Weighted and unweighted GPA can differ by a full point or more for the same transcript — here's exactly how the bonus points work and why colleges often recalculate both.
Two students can have identical letter grades and still report very different GPAs, because one school reports unweighted GPA and the other reports weighted GPA. Neither number is wrong — they're just measuring different things.
How each one works
| Type | How it's calculated | Typical max |
|---|---|---|
| Unweighted | Every course uses the same grade-point scale regardless of difficulty | 4.0 |
| Weighted | Honors and AP/IB/college courses get bonus points added on top of the base grade point | 5.0 (varies by school) |
Typical weighting bonus
- Regular course: no bonus, standard grade point
- Honors course: commonly +0.5 per grade point
- AP, IB, or college-level course: commonly +1.0 per grade point
For example, an A in a regular class is worth 4.0 either way. An A in an AP class is still 4.0 unweighted, but 5.0 weighted (4.0 + 1.0) — which is how a student can end up with a weighted GPA above 4.0 despite never scoring higher than an A.
Why this matters for college applications
Many colleges recalculate every applicant's transcript to their own formula — sometimes fully unweighted, sometimes a partial-weight system — specifically so that a 4.6 weighted GPA from one high school can be fairly compared to a 3.9 weighted GPA from a school with a different bonus scale. Knowing both your weighted and unweighted numbers gives a more complete picture than either alone.
Toggle weighting on or off directly in the GPA Calculator to see both versions of your GPA side by side.