GPA Calculator
The honest 4.0 number: enter letter grades and credits per course, see your unweighted and weighted GPA in one look.
Last updated: August 5, 2026
How GPA works
Your GPA converts each letter grade to a number on the 4.0 scale, then averages those numbers weighted by course credits. Honors, AP and IB courses add bonus points under a weighted system, which is why many transcripts show a GPA above 4.0.
The unweighted figure ignores those bonuses — everyone's top is a 4.0. The weighted figure includes them. Colleges see both, so knowing each matters.
The formulas
Worked example
Geometry B (3 cr), Biology A (4 cr), English C (3 cr), History A (3 cr).
Points = 3×3 + 4×4 + 3×2 + 3×4 = 43, over 13 credits = 3.31 unweighted.
Make biology AP, and the weighted figure rises to about 3.62 — exactly the mechanism that rewards tougher schedules.
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Frequently asked questions
What is a good GPA?
It depends on the context — a 3.5 is strong for many colleges, while competitive programs may want 3.7+. Weighted GPAs are usually compared against school cohort, so your counselor is the best benchmark.
Do colleges see weighted or unweighted?
Most see both, and they often re-calculate your GPA their own way from your transcript. The calculator's weighted figure matches the common high-school method; college use their own policies.
Can I track a running cumulative GPA?
Add every course on your transcript, past and present, to get the cumulative figure. The credit weighting handles mixed semesters correctly, unlike a simple average.
GPA scales differ by school and even by course. Check whether your institution uses a +/− scale or different honors bonuses before relying on these numbers.