Weighted vs. Unweighted GPA

What is the difference between weighted and unweighted GPA? Find out which one colleges care about more.

The Core Difference

An unweighted GPA treats every class the same, capping the highest possible grade at 4.0 whether the course was Regular English or AP Physics. A weighted GPA adds extra points for harder classes — typically an extra 0.5 for Honors courses and a full extra 1.0 for AP or IB courses — which is why weighted scales often cap at 5.0 instead of 4.0.

A Side-by-Side Example

Say a student earns a B (3.0) in an AP class and an A (4.0) in a regular class. Unweighted, that's a 3.5 average. Weighted, the AP B is worth 4.0 (3.0 + 1.0 for AP difficulty) instead of 3.0, making the average 4.0 — noticeably higher, because the weighting rewards taking on harder material even without a perfect grade.

Which One Do Colleges Actually Care About?

Most admissions offices look at both numbers, plus a full list of the actual courses taken. A high weighted GPA built entirely on easy electives impresses no one — but a strong weighted GPA built on genuine AP and IB coursework signals that a student pursued rigor and handled it well. The unweighted number, meanwhile, gives colleges an apples-to-apples baseline they can compare across applicants from different schools with different weighting systems.

Why Some Students Look Better on One Scale Than the Other

A student who takes almost entirely AP/IB classes will typically see a bigger gap between their weighted and unweighted GPA than a student in mostly regular-track classes — because there are more opportunities to earn the extra weighting bonus. Neither number is "wrong"; they simply measure different things: unweighted measures grade performance, weighted measures grade performance combined with course difficulty.

Calculate Both Instantly

Rather than tracking two separate averages by hand, our High School GPA Calculator computes weighted and unweighted GPA side by side, and our AP & IB Multiplier Calculator shows exactly how much each advanced course is boosting your weighted score.