GPA Calculator

A grade point average converts letter grades into numbers, weights each by the credit hours of its course, and averages the result. This calculator uses the standard unweighted 4.0 scale; it does not apply honours or AP weighting and does not offer the 4.5 or 5.0 scales some schools use, so for a weighted GPA you would need to adjust the grade points yourself.

How GPA is calculated

GPA = Σ (grade points × credit hours) ÷ Σ credit hours. On the 4.0 scale used here, A+ and A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0, B− = 2.7, C+ = 2.3, C = 2.0, C− = 1.7, D+ = 1.3, D = 1.0, D− = 0.7, F = 0. Credit hours matter: an A in a four-credit course moves the average more than an A in a one-credit lab. Schools that weight honours or AP courses add 0.5 or 1.0 to those grade points, which is how weighted averages above 4.0 arise; this calculator does not do that.

When to use this calculator

Use it to check a term's GPA from a transcript, or to see what grades you need in the current term to hit a target. Add each course with its letter grade and credit hours and the cumulative GPA for the courses entered updates as you go. Grading scales vary between institutions, so compare the grade-point table on the page with your school's before relying on the result.

Worked example

Five courses: an A in a 4-credit maths course (16 points), a B+ in a 3-credit history course (9.9), an A− in a 3-credit science course (11.1), a B in a 3-credit English course (9.0), and an A in a 1-credit lab (4.0). Total points 50.0 over 14 credits gives a GPA of 3.57. If your school weighted the maths course as AP (+1.0), it would count 20 points and the weighted GPA would be 3.86, but you would have to work that out separately from this calculator.

Frequently asked questions