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High School GPA Calculator
Your courses
Example: English A (4.0), Math B+ (3.3), Science A- (3.7), History B (3.0) and Art A (4.0), one credit each.
Behind the numbers
How your GPA is calculated
Each letter grade is worth points on the standard 4.0 scale. Multiply each grade's points by its course credits, then add up the total points and total credits. Divide the total points by the total credits to get the GPA.
English 4.0 × 1 + Math 3.3 × 1 + Science 3.7 × 1 + History 3.0 × 1 + Art 4.0 × 1 = 18.0 grade points
The 4.0 grade scale
No additional honors or AP points are included.
A few comparisons
Example GPAs
| Courses | Total points | Total credits | GPA |
|---|---|---|---|
| A, B+, A-, B, A (1 credit each) | 18.0 | 5 | 3.60 |
| A (3 cr), B (3 cr), A- (4 cr), C+ (3 cr) | 42.7 | 13 | 3.28 |
| A, B, A, C (1 credit each) | 13.0 | 4 | 3.25 |
| All A grades | 4.0 per credit | — | 4.00 |
Small changes. Stronger GPA.
Focus on high-credit courses first — a better grade in a 3-credit class moves your GPA more than the same improvement in a 1-credit class.
Ask your teacher what it takes to move from a B+ to an A- before the term ends; small grade jumps near a boundary are the fastest way to raise your GPA.
Check whether your school adds extra points for honors or AP classes — this calculator uses the plain 4.0 scale, so add those points separately if your school uses them.
Retaking a low-grade course helps only if your school replaces the old grade; ask your counselor how retakes are counted before you plan around one.
Good to know
Your GPA questions, answered.
What is a good GPA in high school?
On a 4.0 scale, a 3.0 is a solid B average and a 3.5 or higher is strong for most college applications. A 3.60, like the example on this page, is above average at most US high schools.
Is this GPA weighted or unweighted?
This calculator is unweighted: every course uses the plain 4.0 scale, so an A is 4.0 whether the class is regular, honors or AP. It does weight by credits, so a 3-credit course counts three times as much as a 1-credit course.
How do I convert a percentage to a GPA?
Use the letter grade your school assigns to the percentage, then use the points for that letter. For example, an 87% is usually a B+ (3.3) at schools where 87–89% is a B+. Percent-to-letter cutoffs vary by school, so check your school's grading scale.
What if a course has no credits, like gym or an elective?
Leave its grade blank, or set its credits to 0 — the calculator skips any row without a grade, and a 0-credit course adds nothing to the total points or the total credits.