High School GPA Calculator
Enter the grade points and credits for each class to get your GPA on the 4.0 scale. Use 4 for an A, 3 for a B, 2 for a C, and so on, and use higher points for weighted honors or AP classes.
How to calculate high school gpa
GPA is a credit-weighted average of your grade points. Convert each letter grade to points on the 4.0 scale (A=4, B=3, C=2, D=1, F=0), multiply by the class's credits, and add up these quality points. Then divide by the total credits. Classes worth more credits move your GPA more. For a weighted GPA, honors and AP classes use a higher top value, often 4.5 or 5.0, so enter those grade points instead.
GPA = sum(grade points x credits) / sum(credits)
Worked example
You took three 1-credit classes and earned an A (4.0), a B (3.0), and a B+ (3.5).
- Quality points: (4.0 x 1) + (3.0 x 1) + (3.5 x 1) = 10.5
- Total credits: 1 + 1 + 1 = 3
- GPA: 10.5 / 3 = 3.5
Result: Your GPA is 3.5 on the 4.0 scale.
Frequently asked questions
How do you calculate high school GPA?
Convert each class grade to points (A=4, B=3, C=2, D=1, F=0), multiply by the class's credits, add up the results, and divide by the total credits. For an A, B, and B+ in three 1-credit classes, the GPA is 10.5 / 3 = 3.5.
What is the difference between weighted and unweighted GPA?
Unweighted GPA uses a 4.0 maximum for every class. Weighted GPA gives harder classes a higher ceiling, often 4.5 for honors and 5.0 for AP, to reward difficulty. To calculate a weighted GPA here, enter the higher grade points for those classes (for example 5 for an A in an AP class).
How do letter grades convert to grade points?
On the standard 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 2.3, C is 2.0, and so on down to F at 0.0. Some schools use a simpler whole-number scale. Enter whichever points your school uses.
Do all classes count the same toward GPA?
Only if they carry the same credits. GPA weights each class by its credit hours, so a 2-credit class affects your GPA twice as much as a 1-credit class with the same grade. Enter each class's real credit value for an accurate result.