High School GPA Calculator — 4.0 Scale
Enter your letter grade and credit hours for up to 6 courses and instantly calculate your weighted GPA on the standard 4.0 scale used by US high schools and colleges.
Course 1 grade
Course 2 grade
Course 3 grade
Course 4 grade
Course 5 grade
Course 6 grade
B
- 1
Total quality points
4 × 3 + 3.3 × 3 + 3.7 × 4 + 3 × 3 + 2.3 × 2 + 4 × 3 = 62.3 - 2
Total credits
18 - 3
GPA
62.3 ÷ 18 = 3.46
How does this calculator work?
High school GPA = Σ(grade points × credit hours) ÷ total credit hours, using A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0. Enter up to 6 courses with their letter grades and credits to get your weighted cumulative GPA on the standard US 4.0 scale.
Formula
How this is calculated
Grade point average (GPA) is a weighted average of grade points where each course is weighted by the number of credit hours it carries. Each letter grade maps to a numeric value on the 4.0 scale: A and A+ both equal 4.0, A− is 3.7, B+ is 3.3, B is 3.0, and so on down to F = 0.0. A quality point is the product of the grade points and the credit hours for a single course. The GPA is total quality points divided by total credit hours.
For example, an A (4.0) in a 3-credit course contributes 12.0 quality points, while a B+ (3.3) in a 4-credit course contributes 13.2. Dividing the sum of all quality points by total credits gives the cumulative GPA.
Note that the mapping of A+ varies by institution — some schools award 4.3 for A+, others cap it at 4.0. This calculator uses 4.0 for A+ (the most common standard unweighted scale). Honors, AP, and IB courses may use a weighted scale (typically A = 5.0) — check your school policy if that applies.
Frequently asked questions
In the US, a GPA of 3.0 (B) is generally considered satisfactory. Selective universities typically look for 3.5–4.0. A 3.7+ (A−) is considered excellent and often qualifies for honors recognition like cum laude or magna cum laude distinctions.
On the standard unweighted 4.0 scale, both A and A+ are worth 4.0 grade points — A+ has no numeric advantage. Some institutions use a modified scale where A+ = 4.3, but this calculator uses the more common 4.0 cap.
A weighted GPA adjusts grade points upward for advanced courses (AP, IB, Honors) — typically adding 0.5 or 1.0 to each grade. For example, an A in AP Chemistry might count as 5.0 instead of 4.0. This calculator computes unweighted GPA. Multiply AP course quality points by the appropriate weight to get a weighted GPA.
Also known as
TG we-Calculate Editorial Team. (2026). High School GPA Calculator — 4.0 Scale [Online calculator]. TG we-Calculate. https://we-calculate.com/calculator/high-school-gpa-calculator
TG we-Calculate Editorial Team. "High School GPA Calculator — 4.0 Scale." TG we-Calculate. 2026. https://we-calculate.com/calculator/high-school-gpa-calculator.
TG we-Calculate Editorial Team, "High School GPA Calculator — 4.0 Scale," TG we-Calculate, 2026. [Online]. Available: https://we-calculate.com/calculator/high-school-gpa-calculator
@misc{wecalculate_high_school_gpa_calculator, title = {High School GPA Calculator — 4.0 Scale}, author = {{TG we-Calculate Editorial Team}}, howpublished = {\url{https://we-calculate.com/calculator/high-school-gpa-calculator}}, year = {2026}, note = {TG we-Calculate} }
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