GPA Calculator (credit-weighted)

GPA = the sum of (grade points × credits) for every course, divided by the total credits. Grades 4.0, 3.7, and 3.3 with credits 3, 4, and 2 give (12 + 14.8 + 6.6) ÷ 9 ≈ 3.71.

Results are computed from your inputs and rounded for display. Verify important figures independently.

Enter each course's grade points and its credit hours — up to six courses, on whatever scale your institution uses. The calculator returns the credit-weighted GPA, total credits, and total grade points, all computed in your browser.

Formula & methodology

GPA = Σ(grade points × credits) ÷ Σ credits. A 4-credit course moves your average twice as hard as a 2-credit one — that weighting is the whole point. The calculator is scale-agnostic: 4.0-scale, 5.0-scale, or 20-point marks all work because only your own numbers enter the average.

Worked examples

Grades 4.0 / 3.7 / 3.3 with credits 3 / 4 / 2 → total points 33.4, credits 9, GPA 3.711.
20-point scale: 16 (2 credits) and 12 (3 credits) → 68 ÷ 5 = 13.6.

Limits

Institutions differ on letter-to-point mappings, repeated-course rules, and pass/fail exclusions — check your registrar's conversion table before entering points, and leave excluded courses out. This calculator averages exactly what you enter; it does not apply any institution's special rules.

Frequently asked questions

How do I convert letter grades to points?

Use your institution's official table — a common US mapping is A=4.0, A−=3.7, B+=3.3, B=3.0 and so on, but it is not universal. Enter the converted number as the course's grade points.

Does this handle cumulative GPA across terms?

Yes — enter each term's current GPA as the "grade points" and the term's total credits as the "credits", and the calculator returns the correctly weighted cumulative average.