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High School GPA Calculator
High school GPA is usually reported two ways: unweighted on a 4.0 scale and weighted for Honors, AP, and IB classes. Add each course with its letter grade, credit hours, and level. This calculator uses a standard 4.0 scale, adds 0.5 for Honors and 1.0 for AP or IB, and does not apply extra weight to failing grades. Totals update as you type so you can plan next semester or check college applications. Nothing leaves your browser.
Frequently asked questions
What is the difference between weighted and unweighted GPA?
Unweighted GPA uses a 4.0 scale for every class. Weighted GPA adds extra points for harder courses so an A in AP can count as 5.0. Colleges often look at both, along with the rigor of your schedule.
How are Honors and AP or IB classes weighted here?
Honors courses add 0.5 quality points. AP and IB courses add 1.0. Regular courses add none. A 1-credit Honors B (3.0) contributes 3.5 weighted points; a 1-credit AP B contributes 4.0.
What letter grade scale does this calculator use?
A and A+ are 4.0, A− is 3.7, then 0.3 steps down through B+, B, B−, C+, C, C−, D+, D, D−, and F at 0.0. If your school uses plus/minus differently, results may vary slightly.
Do failing grades get extra weight?
No. An F is 0.0 on both scales, even in Honors, AP, or IB. Extra weight applies only when the letter grade is D− or higher.
Can I include more than one semester?
Yes. Add every course you want in the average and set credits to match your transcript (often 0.5 or 1.0 per semester course, or 1.0 for a full year). GPA is the credit-weighted average of those rows.
Will this match the GPA on my report card?
Only if your school uses the same 4.0 scale and the same +0.5 / +1.0 weighting. Some districts use 4.33 for A+, different weights, or exclude certain classes. Treat this as a planning estimate.