GPA calculator

How GPA is calculated

Your GPA isn't a simple average of your letter grades — it's a credit-weighted average, which means a 4-credit course counts twice as much toward your GPA as a 2-credit course. Each letter grade is first converted into a point value on a 4.0 scale, then multiplied by that course's credit hours to get its "quality points." Adding up quality points across every course and dividing by the total number of credit hours gives your GPA.

• Quality points = grade points × credit hours, for each course
• GPA = total quality points ÷ total credit hours

Standard 4.0 grade scale

Grade	Points	Grade	Points
A / A+	4.0	C	2.0
A-	3.7	C-	1.7
B+	3.3	D+	1.3
B	3.0	D	1.0
B-	2.7	D-	0.7
C+	2.3	F	0.0

A worked example

Say you took four courses in a semester: an A in a 3-credit class, a B+ in a 4-credit class, an A- in another 3-credit class, and a C in a 2-credit class. That works out to (4.0×3) + (3.3×4) + (3.7×3) + (2.0×2) = 40.3 total quality points, across 12 total credits — giving a semester GPA of exactly 3.36.

Weighted vs. unweighted GPA

This calculator produces an unweighted GPA, where every course is scored on the same 4.0 scale regardless of difficulty. Some high schools also use a weighted GPA, which adds extra points for honors, AP, or IB courses — meaning an A in an AP class might count as 5.0 instead of 4.0. If your school reports weighted GPA, treat this calculator's result as the unweighted equivalent rather than an exact match to your transcript.

To calculate a cumulative GPA across multiple semesters, simply add every course from every semester into the table above at once — the math works the same way whether it's one term or your entire academic history.