Weighted GPA Calculator

How weighted GPA differs from unweighted

Unweighted GPA uses the same 4.0 scale for every class. An A is 4.0 whether it's P.E. or AP Calculus.

Weighted GPA gives bonus points for advanced courses to reflect that an A in AP Calculus is harder to earn than an A in a regular elective. The most common bump system at U.S. high schools:

Under this system the maximum weighted GPA is 5.0 (straight A's in all advanced courses). That's why you'll see students report a "4.7" or "4.9" — they took mostly AP and IB and earned mostly A's.

Some schools weight differently. The most common variations:

• +0.5 for AP/IB (instead of +1.0), caps weighted GPA at 4.5.
• +1.0 for both Honors and AP — some schools don't distinguish.
• No weighting on D grades — bonus only applies to grades A through C.
• Weighting only in 11th–12th grade — some districts don't weight underclassman courses.
• Weighting capped at 4.0 — the school computes weighted internally but reports it on a 4.0 scale (recalibrated).

This calculator uses the standard +0.5 / +1.0 system. If your transcript follows a different rule, the unweighted number it shows will still be correct, but the weighted figure may differ from what your school reports — your transcript or grading policy is the source of truth.

GPA scale chart with weighting

Note that an F is always 0.0 — schools don't reward failure with bonus points, even in AP.

Worked example, weighted vs unweighted side by side

A junior taking 5 courses, mixing levels:

Unweighted GPA: (3.3 + 4.0 + 3.7 + 4.0 + 3.0) ÷ 5 = 3.60

Weighted GPA: (4.3 + 4.5 + 4.7 + 4.0 + 3.0) ÷ 5 = 4.10

Same student, same grades, half a point difference. That gap is exactly what colleges look at when they compare your transcript line by line: a strong weighted GPA only means something if the weighting matches a rigorous course load.

How heavy AP loading actually changes your GPA

Students often overload on AP classes thinking it'll lift their GPA. Here's what the math actually does, holding grades constant at A− (3.7 unweighted) across 6 courses:

Two practical takeaways: (1) every AP class adds about +0.17 to your weighted GPA at this grade level — small per class, but it compounds across a transcript; (2) loading up on AP only helps if you keep the grades. An AP course where you drop from an A to a C costs more than the equivalent regular class would have lost. Plug a different grade for one course into the calculator and the gap moves.

Convert weighted to unweighted

The cleanest way to convert weighted GPA back to unweighted is to enter each course in the calculator above. The result panel shows both numbers side by side: weighted GPA at the top, unweighted equivalent right beneath it. The unweighted figure strips the AP/Honors bonus from every row.

What you cannot do reliably is recover an unweighted GPA from a single weighted number without knowing your course mix. Two students with a 4.2 weighted GPA can have wildly different unweighted GPAs depending on how many AP and Honors classes they took. If you only have the weighted figure and no transcript handy, the best you can do is estimate based on your typical course load.

Should you report weighted or unweighted on college applications?

The honest answer: report what your school officially calculates. Your high school sends colleges your transcript with its official GPA, and the Common App's "Class Rank/GPA" section asks for the GPA "as your school reports it." Don't recalculate your GPA to a different scale on the application.

Three details worth knowing:

• Selective colleges recalculate GPA themselves. Most highly selective U.S. colleges run admitted students' transcripts through their own internal GPA calculation — usually unweighted, sometimes excluding non-academic courses (P.E., electives, study skills). Your reported GPA matters less than the actual transcript.
• The Common App lets you specify your scale. Pick the scale your school uses (4.0, 5.0, 100-point, etc.). If your school uses a 5.0 weighted scale, say so.
• Your counselor's school profile does the explaining. Colleges read each high school's profile alongside your transcript — that's where weighting policies, course rigor, and grade distributions are documented. You don't need to explain it on the application.

If your school doesn't compute a weighted GPA at all (some don't), an admissions reader will see the unweighted number plus your course rigor, and that's fine.