GPA Calculator

How to Use the GPA Calculator

For each course, enter the letter grade you earned and the number of credit hours it carried, adding a row per class. The calculator converts each grade to its point value, weights it by credits, and returns your grade point average instantly. Add every course in a term for your semester GPA, or all courses across terms for a cumulative GPA.

The GPA Formula

GPA is a credit-weighted average, not a simple average of grades: GPA = Σ(grade points × credits) ÷ Σ credits. First each letter grade becomes a number on the 4.0 scale (A = 4.0, B = 3.0, C = 2.0, and so on). Then each is multiplied by its credit hours, the products are summed, and that total is divided by the total credit hours. This is why a 4-credit course influences your GPA more than a 1-credit one.

Worked Example

Suppose you take Biology (A, 4 credits), History (B+, 3 credits), and a seminar (A-, 2 credits). Convert: 4.0×4 = 16.0, 3.3×3 = 9.9, and 3.7×2 = 7.4. The grade points sum to 33.3 over 9 total credits, giving 33.3 ÷ 9 = 3.70. Notice how the strong Biology grade, worth the most credits, anchors the result.

Raising and Interpreting Your GPA

The more credits already on your transcript, the more each new grade is diluted, so a low GPA takes several strong terms to lift — the calculator lets you model "what if" scenarios before you commit. As a rough guide, a 3.5+ often qualifies for honors, 3.0 is a common minimum for scholarships and graduate programs, and 2.0 is a typical graduation floor. Everything is computed in your browser, so your grades stay private.