The Weighted GPA Formula, and What Grade You Actually Need Next Semester

GPA looks like an average because it is one — just weighted by credit hours instead of counted evenly. A 4-credit A and a 1-credit A don't move your GPA by the same amount, which is exactly what trips people up doing the math by hand. The GPA & Grade Calculator handles both directions: computing your current GPA from courses, and solving backward for what you need next.

The weighted average, explicitly

Each course contributes credits × grade points (A = 4.0, A- = 3.7, B+ = 3.3, and so on down a standard scale), and GPA is the sum of those contributions divided by total credits — not a simple average of letter grades, which is why a schedule full of 1-credit electives barely moves your GPA no matter what you score in them.

Solving for the grade you need

The harder question — "I have a 3.4 GPA over 60 credits, I want to graduate at 3.5, and I have 15 credits left this semester" — is just the weighted-average formula solved for the unknown semester GPA:

requiredSemesterGpa = (targetGpa × (completedCredits + semesterCredits) − currentGpa × completedCredits) / semesterCredits

The tool runs this directly rather than making you guess-and-check different semester GPAs against a spreadsheet. If the result comes back above 4.0, that target isn't reachable in one semester at your current pace — the honest answer, not a number that quietly clips at the maximum.

Between the calculation and the grade

The formula only tells you what average you need — getting there is a study problem, not a math problem. Spaced-repetition review with the Flashcards & Spaced Repetition tool and paced practice under the Exam & Section Timer cover the part the calculator can't.