How to calculate GPA from credits and grades
Updated 2026-11-13
Quick answer
GPA = the sum of (credits × grade points) ÷ total credits. With courses of 3 credits at 4.0, 4 at 3.7, 3 at 3.0, 3 at 3.3 and 2 at 4.0, the points are 53.7 over 15 credits, so the GPA is 3.58.
Steps
- List each course with its credits and the grade points you earned.
- Multiply the credits by the grade points for each course: 3 × 4.0 = 12, 4 × 3.7 = 14.8, 3 × 3.0 = 9, 3 × 3.3 = 9.9, 2 × 4.0 = 8.
- Add the results: 12 + 14.8 + 9 + 9.9 + 8 = 53.7.
- Add the credits: 3 + 4 + 3 + 3 + 2 = 15.
- Divide: 53.7 ÷ 15 = 3.58. Or enter the courses in the GPA calculator.
The common 4.0 scale
A is 4.0, A− is 3.7, B+ is 3.3, B is 3.0, B− is 2.7, C is 2.0, D is 1.0 and F is 0. Use the scale your school publishes, because some schools differ, for example by giving A+ 4.3 or leaving out the minus grades.
Courses with more credits count for more. Take a 4-credit course at 4.0, a 4-credit course at 3.0 and a 3-credit course at 2.0: the GPA is (16 + 12 + 6) ÷ 11 = 3.09, not the plain average of the three grades, which is 3.0.
Planning ahead
To see what you need, add the credits and grade points you already have to the courses you expect. If you have 60 credits at a 3.2 GPA, you have 192 grade points; add the next semester’s courses to the totals and divide again. This is how you find the grades needed to reach a target GPA.
What to leave out
Leave unused course slots at 0 credits. Courses taken pass or fail usually carry no grade points and are left out of the GPA, though policies differ. For an official GPA, always use the figure on your transcript.
Try it yourself
Common questions
What is the GPA formula?
The sum of credits times grade points for every course, divided by the total credits.
Why is the GPA not a plain average of my grades?
Because courses are weighted by credits. A course with more credits counts for more.
How do I raise my GPA?
Earn higher grades in courses with more credits. Retaking a course may replace the old grade, depending on your school’s rules.
Is a 4.0 GPA the same everywhere?
The scale is common but schools differ. Use the scale your school publishes.
Also read: How to convert CGPA to percentage, with examples, How to calculate your marks percentage and target