Weighted GPA Calculator 2026: The Complete Guide to the 5.0 Scale

A weighted GPA is your unweighted GPA with one twist: harder courses earn bonus grade points. The standard bonus is +0.5 for honors classes and +1.0 for AP, IB, or dual-enrollment college courses, on top of the regular 4.0 scale. Done right, an all-A student in five APs can finish with a 5.0 weighted GPA — but the unweighted GPA the colleges actually use is still capped at 4.0.

Most high school transcripts report the weighted number prominently because it makes the school and the student look impressive. Most college admissions offices recompute the unweighted GPA before reading the application. Understanding both is the only way to know where you actually stand.

The weighted formula

Weighted GPA = (sum of (grade points + course bonus) × credit hours) ÷ (sum of credit hours). The bonus is added to the grade points before multiplying by credit hours, which means honors and AP courses contribute more quality points per credit hour than regular courses at the same letter grade.

Standard bonuses by course type

• Regular / college-prep: +0.0 (uses the standard 4.0 scale).
• Honors: +0.5 (an honors A = 4.5 grade points).
• AP: +1.0 (an AP A = 5.0 grade points).
• IB Higher Level: +1.0.
• IB Standard Level: typically +0.5 (varies by district).
• Dual-enrollment college courses: +1.0 in most districts.

These are the most common weights nationally. Some districts use different conventions — a +0.33 instead of +0.5 for honors, or no weighting at all for dual enrollment. The only authoritative source is your high school's course catalog or guidance department.

A worked example

A junior takes six year-long courses: AP Calculus BC (1 credit, A = 4.0 + 1.0 = 5.0), AP English Language (1 credit, B+ = 3.3 + 1.0 = 4.3), Honors Chemistry (1 credit, A− = 3.7 + 0.5 = 4.2), Spanish III (1 credit, A = 4.0), Regular U.S. History (1 credit, B = 3.0), and PE (0.5 credits, A = 4.0). Quality points: 5.0 + 4.3 + 4.2 + 4.0 + 3.0 + 2.0 = 22.5 across 5.5 credits. Weighted GPA: 22.5 ÷ 5.5 = 4.09. Unweighted GPA: same courses without bonuses = 21.0 ÷ 5.5 = 3.82.

What colleges actually do with the number

Most selective colleges recompute GPA on their own internal scale, usually a strict unweighted 4.0 from academic core courses only (English, math, science, social studies, foreign language). Course rigor is then evaluated separately — your school profile tells the admissions office how many APs were available, so taking the hardest courses your school offers still matters even when the weight isn't credited.

Why weighted GPA still matters

• Class rank — almost always based on weighted GPA at schools that rank.
• Local scholarships — many state and district programs use weighted.
• School honors (valedictorian, salutatorian, summa cum laude) — almost always weighted.
• Some less-selective colleges use weighted GPA as-is from your transcript.

Track both numbers

Run the calculator after every grading period and write down both the weighted and unweighted numbers. The weighted number tells you how you're doing at your school. The unweighted number tells you how you'll look to selective college admissions. They almost always tell different stories — and you need both to plan.