Weighted vs Unweighted GPA

Both measure academic performance using the same credit-weighted averaging formula. The difference is whether course difficulty adds extra points to the grade before it's averaged.

Unweighted GPA

Every course counts the same regardless of level. An A in gym and an A in AP Calculus both contribute 4.0 to the average. This makes unweighted GPA simple to compare across students, but it doesn't reflect that some courses are harder than others.

Weighted GPA

Honors, AP, and IB courses get extra grade points, commonly +0.5 for honors and +1.0 for AP/IB, before averaging. This rewards students for taking harder courses, but makes GPA harder to compare between schools, since weighting policies aren't standardized.

Side-by-side example

Three courses: Regular English (A), AP History (B+), Honors Chemistry (A-).

• Unweighted: (4.0 + 3.3 + 3.7) ÷ 3 = 3.67
• Weighted (+1.0 AP, +0.5 honors): (4.0 + 4.3 + 4.2) ÷ 3 = 4.17

Same courses, same grades, a 0.5-point difference purely from how the school weights difficulty.

Which one matters for college applications

Many colleges recalculate applicants' GPAs using their own formula anyway, so neither number is necessarily what gets used in admissions. Report both if your transcript shows both, and don't assume a higher weighted GPA at one school means more than a lower one at a school with a stricter weighting policy.

Calculate either version with the GPA calculator, using the grade points that match your school's scale.