GPA Calculator

Calculate your semester GPA and cumulative GPA. Enter course grades and credit hours for an instant result.

This calculator computes Semester GPA as a credit-weighted average: each course's grade points times its credit hours, summed and divided by total credits (line 48). Course 5 is optional and only joins that sum when its credit hours are above 0 — `if (course5Credits > 0)` (line 24) — so leaving it at the default 0 credits omits it from both the numerator and denominator entirely, rather than counting it as a 0.0 course that would drag the average down. Because each course's grade is entered through a dropdown of fixed values rather than a free-numeric field, nudging inputs up and down to see what moves Semester GPA only shows the effect of the four courses' credit-hour weights, not what swapping one letter grade for another would do; at the defaults, Course 1 (A-, 3.7) and Course 4 (A, 4.0) sit above the 3.48 weighted average, so giving either more credit weight raises the GPA, while Course 2 (B+, 3.3) and Course 3 (B, 3.0) sit below it and pull the average down when weighted more heavily. Cumulative GPA folds in Current Cumulative GPA and Current Total Credits (line 51), but both default to 0, and multiplying anything by 0 credits leaves the cumulative quality points equal to this semester's alone — so at the defaults, Cumulative GPA exactly equals Semester GPA, not an average of two GPAs. What this does not account for: plus/minus grade variants beyond the eleven listed options, or grade replacement/repeat policies some schools apply when a course is retaken.