About

Our mission is to make GPA and grade calculations understandable to students, parents and teachers. GPA Calc shows the grade points, credits and arithmetic behind each result, so you can compare an estimate with your transcript instead of trusting a hidden formula.

Schools do not all use the same scale. Some give an A− 3.7, some 3.67; some count an A+ as 4.3; some weight Honors and AP classes and some do not. Instead of hiding one choice inside the maths, every calculator lets you pick the scale your school uses, and every scale is listed on how we calculate with the source it came from.

Everything runs in your browser. There is no account and nothing is sent anywhere. Your entries are remembered in your own browser so they are there when you come back; “Start over” clears them.

Corrections

If a result looks wrong, the fastest fix is a specific one: which calculator, what you entered, what you expected, and where your expected figure comes from (a transcript, a syllabus, a registrar’s page). Corrections are reflected on the how we calculate page.

We publish the scale assumptions and source notes so you can check our work. Use the contact page or email [email protected] with a specific example. About page reviewed October 8, 2026.

Limits

These are estimates for planning. Your official GPA is the one your school calculates, which can include rules this site does not know about, such as repeated classes, grade forgiveness, transfer credit or rounding. When the two disagree, the registrar is right.