GPA calculators

A GPA is one more weighted average, and credits are the weights. A 4-credit course counts four times as much as a 1-credit one, which is why a term of good grades in small courses moves the number less than it feels like it should.

These tools do that arithmetic on the scale your school actually publishes — an A− is worth 3.7 at one institution and an A+ is worth 4.3 at another — and show every quality point behind the answer, so you can see which course moved your average and by how much.