High School GPA Calculator
Enter your classes and letter grades — get your weighted or unweighted high school GPA instantly. Works with or without credit hours. Everything runs in your browser. No signup, no tracking.
Course grades
Enter each class's credits and letter grade. Use P/CR for classes that don't affect GPA.
If you already have a cumulative GPA, enter it with total credits earned before this term to see your new cumulative.
Your GPA
Semester / term GPA
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Enter credits and grades to begin
How to calculate your high school GPA
Your grade point average is the sum of quality points divided by total graded credit hours. On the standard unweighted 4.0 scale, an A earns 4.0 quality points per credit hour; a B earns 3.0. On a weighted scale, honors and AP classes add 0.5 extra points per grade tier.
Choose weighted or unweighted
Select whether your school uses a weighted (4.3/5.0) or unweighted (4.0) scale. Most US high schools use unweighted 4.0.
Enter your classes and grades
Add each class with its letter grade. If you have credit hours, enter them too — otherwise use 1 credit per class.
Read your semester GPA
The calculator shows your grade point average instantly. The breakdown shows total credits and quality points used in the formula.
Blend your cumulative GPA
Enter your existing cumulative GPA and prior credits to see your updated overall GPA across all terms.
Weighted vs. unweighted GPA — what's the difference?
An unweighted GPA uses a flat 4.0 scale. Every A is worth 4.0 quality points regardless of course difficulty — whether it's standard English or AP Calculus. This is the most common format used by US high schools and reported to colleges on transcripts.
A weighted GPA rewards harder coursework. AP and IB classes typically add 0.5 extra quality points per grade tier (A = 4.5 or 5.0 instead of 4.0). An honors class might add 0.25. This means a student taking all AP classes can exceed a 4.0 GPA. Most colleges recalculate applicant GPAs on their own unweighted scale to compare students fairly.
High school GPA scale — letter grades to quality points
The table below shows the standard unweighted 4.0 mapping used by most US high schools. Minus grades typically reduce the grade tier by 0.3 points. Your school's registrar policy always takes precedence.
| Letter Grade | Unweighted (4.0) | Weighted AP/Honors (4.5 / 5.0) |
|---|---|---|
| A+ / A | 4.00 | 5.00 / 4.50 |
| A− | 3.70 | 4.70 / 4.20 |
| B+ | 3.30 | 4.30 / 3.80 |
| B | 3.00 | 4.00 / 3.50 |
| B− | 2.70 | 3.70 / 3.20 |
| C+ | 2.30 | 3.30 / 2.80 |
| C | 2.00 | 3.00 / 2.50 |
| C− | 1.70 | 2.70 / 2.20 |
| D+ | 1.30 | 2.30 / 1.80 |
| D | 1.00 | 2.00 / 1.50 |
| F | 0.00 | 0.00 |
GPA thresholds — scholarships, Dean's list & college admission
High school GPA thresholds vary by school and scholarship, but these benchmarks are widely used across US academic institutions. All figures refer to unweighted 4.0 scale GPA unless noted.
Academic probation is typically triggered below a 2.0 cumulative GPA. A 3.0 is the minimum requirement for most merit-based scholarships and NCAA athletic eligibility. Dean's list recognition generally starts at 3.5 and above. Selective four-year colleges typically look for a 3.7 or higher, while highly competitive schools expect a 3.9 to 4.0+ weighted GPA. National Merit Scholarship consideration requires strong PSAT scores plus a high GPA — see the College Board scholarship guidance for current requirements. For national GPA context, the NCES data on high school academic performance reports the average US high school GPA at approximately 3.0 on an unweighted scale.
How cumulative GPA works in high school
Your cumulative GPA is calculated across all graded semesters, not just one term. To find it manually: add up all quality points earned across every semester, then divide by total graded credit hours across every semester. One bad semester does not ruin your cumulative GPA — it gets diluted by all prior terms, and a strong next semester will raise it. Use the cumulative blend fields in the calculator above to model exactly how your GPA will move after this term's grades.
Calculating GPA without credit hours
Some high schools do not assign credit hours to individual classes, or all classes carry equal weight. In that case, set each course to 1 credit in the calculator. With equal credits the formula simplifies to a straight average of grade points — which is mathematically identical to how many high schools report GPA on report cards. The calculator handles both cases correctly.
Need a college GPA calculator instead? Use our college GPA calculator which supports semester credit hours, 4.3 scale for A+, and cumulative GPA blending for university coursework.
High school GPA calculator FAQ
What is the difference between weighted and unweighted GPA in high school?
An unweighted GPA uses a 4.0 scale where an A equals 4.0 regardless of course difficulty. A weighted GPA gives extra points for honors, AP, or IB classes — typically A = 4.5 or 5.0 — rewarding harder coursework. Most US colleges consider both when reviewing applications.
Can I calculate my high school GPA without credit hours?
Yes. If your school does not assign credit hours, set each course to 1 credit. The GPA formula divides total quality points by total graded credits, so equal credits produce a straight letter-grade average.
What GPA do I need for scholarships?
Most merit scholarships require a minimum 3.0 GPA, with competitive awards requiring 3.5 or higher. Dean's list eligibility typically starts at 3.5. Academic probation is usually triggered below 2.0. Always check the specific requirements for each scholarship or program.
What is a good high school GPA?
A 3.0 is generally considered good. A 3.5 or higher puts you in strong standing for most four-year colleges. Selective universities typically expect a 3.7 or above. The national average US high school GPA is approximately 3.0 on an unweighted scale.
How do I calculate cumulative GPA in high school?
Add up all quality points from every semester and divide by total graded credit hours across all semesters. Use the cumulative blend section in this calculator — enter your existing cumulative GPA and prior credits to automatically blend in your new semester.
Does my data get saved or sent to a server?
No. The calculator runs entirely in your browser using JavaScript. Nothing you type is sent to any server or stored anywhere. Close the tab and the data is gone.