Calculate your weighted GPA
BestGPACalculator is a free GPA calculation tool for US high school and college students, supporting weighted, unweighted, AP, Honors, IB, and dual-enrollment grading systems.
Most common US scale: +0.5 honors, +1.0 AP/IB/dual.
Your classes
4 classesHow it works
From classes to GPA in three steps
Most calculators get one thing wrong: they assume every school uses the same +0.5 / +1.0 weighting. We don't.
Pick your scale
Standard, conservative, third-step, uniform, or AP-only. Match your district's policy in one click.
Enter classes
Subject, letter grade, credits, level. Add or remove rows as you go. Auto-saves to your browser.
Read your GPA
Both weighted and unweighted update live. See exactly how each AP or Honors class changes your number.
Weighting scales
Five scales — pick the one your school uses
Schools don't agree on how much an AP or Honors class is worth. Here's what an A is worth under each common scale.
| Scale | Hon / AP bonus | Honors A | AP A | Used by |
|---|---|---|---|---|
| Standard | +0.5 / +1.0 | 4.5 | 5.0 | Most US public high schools |
| Conservative | +0.25 / +0.75 | 4.25 | 4.75 | Districts limiting grade inflation |
| Third-step | +0.33 / +0.67 | 4.33 | 4.67 | Schools using thirds |
| Uniform | +1.0 / +1.0 | 5.0 | 5.0 | Treats Honors = AP |
| AP-only | 0 / +1.0 | 4.0 | 5.0 | No Honors bonus |
Why students pick us
The features that set us apart
Per-school weighting
Standard, conservative, third-step, uniform, AP-only — five scales out of the box. Your school's policy, your numbers.
Live calculation
No submit button, no waiting. Type a grade, watch your GPA change. Both weighted and unweighted, side by side.
Auto-save
Your classes save to your browser. Close the tab, come back tomorrow — everything still here. No account.
AP / Honors / IB / Dual
Tag every class with its real level. Each gets the right bonus under your selected scale, automatically.
Add unlimited classes
Track an entire semester or your whole high school career. Credits or units — any granularity works.
Mobile-first
Designed for phones. Big tap targets, sticky GPA display, no horizontal scroll. Works in class, on the bus, anywhere.
Frequently asked questions
What is the difference between weighted and unweighted GPA?
Unweighted GPA uses a 4.0 scale where every class is treated equally. Weighted GPA gives extra credit for harder courses — typically +0.5 for Honors and +1.0 for AP, IB, and dual-enrollment classes — so an A in an AP class is worth 5.0 instead of 4.0.
Can a weighted GPA be above 4.0?
Yes. Under the common +1.0 AP / +0.5 Honors weighting used by most US public high schools, an A in an AP course is worth 5.0 and an A in Honors is worth 4.5. Students taking advanced course loads commonly land in the 4.2–4.7 weighted range. Most districts cap at 5.0; a few use +2.0 AP weighting and can go to 6.0 — see our GPA Scale guide for every common scale.
Do colleges look at weighted or unweighted GPA?
Most selective colleges recalculate your GPA on a standard scale and consider course rigor separately. They want to see both that you took challenging classes and that you did well in them.
Why does my school's GPA differ from this calculator?
Schools weight differently. Some only weight AP, others include dual-enrollment, some cap the bonus per semester. Use the school weighting scale dropdown to match your district's policy, or check your school's GPA handbook for the exact formula.
How much does an AP class boost my GPA?
On the standard +1.0 scale, an A in an AP class is worth 5.0 quality points instead of 4.0. Over a year of four AP A's, your weighted GPA can sit at 5.0 while your unweighted stays at 4.0.
Is my data saved if I close the tab?
Yes. Your classes and chosen weighting scale save to your browser's local storage. No account needed, no data sent to any server. Clear your browser data to wipe it.
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