Skip to content
Quick Tools
Menu
School

High School GPA Calculator

This high school GPA calculator averages letter grades and credits into an unweighted 4.0 GPA and a weighted GPA for Honors, AP, and IB.

Course 1
Course 2
Course 3
Course 4

GPA

Unweighted (4.0)
3.500
Weighted
3.875
Credits counted
4

Honors +0.5, AP/IB +1.0. Extra weight is not applied to an F.

How to use

  1. Add each course with its letter grade, credits, and level (regular, Honors, or AP/IB).
  2. Use 1.0 for a full-year course or 0.5 for a semester if that matches your transcript.
  3. Read unweighted GPA and weighted GPA. Failing grades do not receive extra weight.

Formula

Unweighted points use a 4.0 scale (A = 4.0, A− = 3.7, then steps of 0.3 down to F = 0). Honors adds 0.5 and AP or IB adds 1.0, but only when the grade is D− or higher. GPA is the credit-weighted average of those points.

Example. A 1-credit regular A (4.0) and a 1-credit AP A (5.0) average to a 4.0 unweighted GPA and a 4.5 weighted GPA.

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.

Related tools