GPA Calculator

What this GPA calculator does

This GPA calculator works out your grade point average for a semester from your courses, credit hours and grades, then combines it with your previous GPA to give your cumulative GPA. It supports the standard 4.0 scale, a 4.3 scale where A+ counts extra, a 5.0 weighted scale with extra points for Honors and AP or IB classes, and percentage grades that are converted to the 4.0 scale.

It can also tell you what GPA you need over your remaining credits to reach a target, which is useful when you’re planning for scholarships, graduate school or honours thresholds.

How to use the GPA calculator

1. Choose the grading scale your school uses. If you’re not sure, it’s almost always the unweighted 4.0 scale.
2. Enter each course with its credit hours and your letter grade, or your percentage if you chose the percentage scale. On the weighted scale, mark each course as Regular, Honors or AP/IB.
3. Read your semester GPA, total credits and quality points on the right.
4. For your cumulative GPA, enter your GPA so far and the credits it covers.
5. To plan ahead, enter a target GPA and the credits you still have to take.

How GPA is calculated

Each letter grade has a point value: A = 4.0, A− = 3.7, B+ = 3.3, B = 3.0 and so on down to F = 0. Multiply each course’s points by its credit hours to get quality points, add them up, and divide by the total credits:

GPA = Σ (grade points × credits) ÷ Σ credits

Example: Calculus B+ (4 credits), English A (3), Biology A− (4) and History B (3). Quality points are 3.3 × 4 + 4.0 × 3 + 3.7 × 4 + 3.0 × 3 = 49. Divided by 14 credits, that’s a 3.50 GPA. Because credits act as weights, a four-credit course affects your GPA more than a one-credit lab.

Cumulative GPA in the GPA calculator

Your cumulative GPA isn’t the average of your semester GPAs. It’s all your quality points divided by all your credits. If you had a 3.40 over 60 credits and earn 49 quality points over 14 credits this term, your new cumulative GPA is (3.40 × 60 + 49) ÷ 74 = 3.42. The more credits you already have, the less one semester can move it.

Weighted and unweighted GPA

An unweighted GPA tops out at 4.0 and treats every class the same. Many US high schools also report a weighted GPA, where Honors classes add 0.5 and AP or IB classes add 1.0, so an A in AP Biology counts as 5.0. Colleges usually recalculate GPAs their own way, so it’s worth knowing both numbers.

Grade	4.0 scale	Honors (5.0)	AP / IB (5.0)
A	4.0	4.5	5.0
B+	3.3	3.8	4.3
B	3.0	3.5	4.0
C	2.0	2.5	3.0
F	0	0	0

Related tools

Work out your grade in a single course first with the Grade Calculator, convert raw scores with the Percentage Calculator, and check long sums on the Scientific Calculator. For the full explanation, including pass/fail courses and retakes, read our guide on how to calculate GPA. The overview of grading in education compares GPA with other systems.

Frequently asked questions

What is a good GPA?

On a 4.0 scale, 3.0 (a B average) is generally solid, 3.5 and above is strong, and 3.7 or higher is typical for very competitive programmes. What counts as good depends on your goal.

Do pass/fail courses count in my GPA?

Usually not. Pass/fail credits count towards graduation but carry no grade points, so leave them out of the GPA calculator.

How do retaken courses affect GPA?

Many schools replace the old grade with the new one; others average both. Check your school’s policy and enter only the grades that count.

Can the GPA calculator convert percentages?

Yes. Choose the percentage scale and the GPA calculator converts each score using the common US bands (93%+ = A, 90% = A−, 87% = B+ and so on).

Is a 4.0 weighted GPA the same as a 4.0 unweighted?

No. A 4.0 unweighted means straight A’s. A 4.0 weighted could include B’s in advanced classes, because those classes earn bonus points.

Why is my cumulative GPA barely changing?

Because it’s weighted by credits. After 90 credits, even a perfect semester of 15 credits raises a 3.0 only to about 3.14.