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GPA calculator

Add each class with its grade and credits. Your GPA updates as you type, weighted and unweighted.

Runs in your browser. Your grades are not sent or saved.

ClassGradeCreditsLevelRemove

Grade can be a letter (A−, B+) or a percent (91). Credits are often 1 per class in high school, 3 or 4 in college.

Add to an earlier GPA (cumulative)

Unweighted GPA

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Weighted GPA
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Credits
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How GPA is worked out

Each letter grade has a point value on the 4.0 scale, from 4.0 for an A to 0 for an F. Each class's points are multiplied by its credits, the results are added up and the total is divided by the number of credits. That way a 4-credit class counts more than a 1-credit one.

ClassGradeCreditsLevelPoints × credits
MathA (4.0)4AP (+1.0)16.0 unweighted, 20.0 weighted
EnglishB+ (3.3)3Honors (+0.5)9.9 unweighted, 11.4 weighted
History78% = C+ (2.3)3Regular6.9 both
Total1032.8 and 38.3

Divided by 10 credits, that is an unweighted GPA of 3.28 and a weighted GPA of 3.83. The weighted figure is higher because Honors and AP classes earn extra points for being harder: 0.5 for Honors and 1.0 for AP or IB is the most common rule, so an A in an AP class counts as 5.0. An F never gets the extra points.

Letter grades and points

LetterPointsLetterPoints
A+4.0C2.0
A4.0C-1.7
A-3.7D+1.3
B+3.3D1.0
B3.0D-0.7
B-2.7F0.0
C+2.3

Percents are turned into letters first with the usual scale (93–96 is an A, 90–92 an A−, 87–89 a B+ and so on), the same one the grade calculator uses. Some schools count an A+ as 4.3 or skip plus and minus grades; if yours does, enter the letter your transcript shows.

Cumulative GPA

To add this term to the GPA you already have, open Add to an earlier GPA and enter your GPA and credits so far. The new cumulative GPA is (old GPA × old credits + this term's points) ÷ all credits. With 3.40 over 30 credits and the example term above (32.8 points over 10 credits), it is (102 + 32.8) ÷ 40 = 3.37, unweighted.

Questions

How do you calculate GPA?

Turn each grade into points on the 4.0 scale, multiply by the class credits, add those up and divide by the total credits. An A (4.0) and a B (3.0) in two 3-credit classes give (12 + 9) ÷ 6 = 3.50.

How do I calculate my weighted GPA?

Set each class's Level. Honors adds 0.5 and AP or IB adds 1.0 to the grade points before averaging, and an F gets no bonus. The weighted GPA shows next to the unweighted one.

What is the difference between weighted and unweighted GPA?

Unweighted GPA counts every class the same, so 4.0 is the top. Weighted GPA gives extra points for harder classes, so it can go above 4.0. Many high schools report both.

Can I calculate GPA without credits?

Yes. Enter 1 as the credits for every class, and each class then counts the same.

Can I enter percentages instead of letter grades?

Yes. Type a percent such as 87 and it is turned into a letter with the usual scale, here a B+. Percents must be from 0 to 100; anything above is flagged so you can check it.

Which GPA do colleges look at?

Both, often. Many colleges recalculate GPA their own way from your transcript, some using only core classes, so the weighted figure shows the strength of your schedule and the unweighted one is easier to compare between schools.

Do pass/fail classes count?

Usually not. A pass adds credits toward graduation but no grade points, so leave those classes out. A fail in a graded class does count, as 0 points.

Is this the same as the GPA in other countries?

No. This calculator uses the 4.0 scale common in the United States. Many countries use other scales, such as percentages, 1 to 10, or a 4.5 scale, and converting between them depends on each university's rules.

Last updated November 7, 2026 · Spotted a wrong result? Tell us and we'll check it.