Cumulative GPA Calculator
Blend your existing GPA and credits with this term's grades to get your updated cumulative GPA on a 4.0 scale.
How it works
Your cumulative GPA is the average of every grade you've ever earned, weighted by credits. To update it, you don't need to re-enter years of coursework — you just need two numbers: the GPA you have now and how many credits it covers.
The calculator turns your prior GPA and credits back into total grade points (GPA times credits). Then it adds the points from this term — each letter grade maps to points, A is 4.0, A- is 3.7, B+ is 3.3, and so on — multiplied by that course's credits.
Add up all the points, divide by all the credits, and you've got your new cumulative number. It's the honest way to see whether a strong term will actually move the needle, or whether one rough grade is enough to nudge it down.
Frequently asked questions
How do I calculate my new cumulative GPA?
Multiply your old GPA by your old credits to get total quality points, add the points from this term's grades, then divide by your combined credit total. This tool does all of that as you type.
Why does one term barely change my GPA?
Because your cumulative GPA is spread across every credit you've taken. Once you have 60 or 90 credits behind you, a single 15-credit term is a small slice of the whole, so it moves the average slowly.
What grade scale does this use?
The standard unweighted 4.0 scale: A is 4.0, A- is 3.7, B+ is 3.3, B is 3.0, down to F at 0.0. If your school weights honors or AP courses differently, your official GPA may vary slightly.