Last Updated: July 17, 2026
Every GPA starts with a scale: a fixed table that turns each letter grade into grade points. This page is the complete reference — the standard 4.0 scale, the weighted 5.0 scale with Honors and AP/IB bumps, and the percentage bands behind the letters. Use the quick converter to look up any single grade, then bookmark the charts for everything else.
The scale is fixed. Your test score isn't.
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The 4.0 scale is the common currency of US education: an A is worth 4.0 points, each step down the letter ladder subtracts roughly a third of a point, and an F is worth zero. Averaging those points across your classes produces your GPA — you can run that math with our high school GPA calculator.
| Letter grade | Grade points | Typical percentage |
|---|---|---|
| A+ | 4.0 | 97–100% |
| A | 4.0 | 93–96% |
| A- | 3.7 | 90–92% |
| B+ | 3.3 | 87–89% |
| B | 3.0 | 83–86% |
| B- | 2.7 | 80–82% |
| C+ | 2.3 | 77–79% |
| C | 2.0 | 73–76% |
| C- | 1.7 | 70–72% |
| D+ | 1.3 | 67–69% |
| D | 1.0 | 63–66% |
| D- | 0.7 | 60–62% |
| F | 0.0 | Below 60% |
Weighted scales reward course rigor by adding a bump to advanced classes before averaging: +0.5 for Honors and +1.0 for AP, IB, or Dual Enrollment under the most common policy. That pushes the ceiling for an A in an AP class to 5.0 — which is where the "5.0 scale" gets its name. Here's every letter grade across all three tiers:
| Letter grade | Regular | Honors (+0.5) | AP / IB (+1.0) |
|---|---|---|---|
| A+ | 4.0 | 4.5 | 5.0 |
| A | 4.0 | 4.5 | 5.0 |
| A- | 3.7 | 4.2 | 4.7 |
| B+ | 3.3 | 3.8 | 4.3 |
| B | 3.0 | 3.5 | 4.0 |
| B- | 2.7 | 3.2 | 3.7 |
| C+ | 2.3 | 2.8 | 3.3 |
| C | 2.0 | 2.5 | 3.0 |
| C- | 1.7 | 2.2 | 2.7 |
| D+ | 1.3 | 1.8 | 2.3 |
| D | 1.0 | 1.5 | 2.0 |
| D- | 0.7 | 1.2 | 1.7 |
| F | 0.0 | 0.0 | 0.0 |
To see how weighting changes a real transcript, run your classes through the weighted GPA calculator.
If your school grades in percentages, each score falls into a band that determines the letter grade — and through it, the grade points. For one-click conversions of any score, use our percentage to GPA calculator.
| Percentage | Letter grade | GPA |
|---|---|---|
| 97–100% | A+ | 4.0 |
| 93–96% | A | 4.0 |
| 90–92% | A- | 3.7 |
| 87–89% | B+ | 3.3 |
| 83–86% | B | 3.0 |
| 80–82% | B- | 2.7 |
| 77–79% | C+ | 2.3 |
| 73–76% | C | 2.0 |
| 70–72% | C- | 1.7 |
| 67–69% | D+ | 1.3 |
| 63–66% | D | 1.0 |
| 60–62% | D- | 0.7 |
| Below 60% | F | 0.0 |
The 4.0 scale is a US convention, and other systems don't line up with it point for point. Many Canadian universities use a 4.3 scale that rewards the A+, Australia grades on a 7.0 scale, India reports a 10.0 CGPA, and the UK skips grade points entirely in favor of degree classifications like first-class honours. Because none of these map 1:1 onto 4.0, US institutions rely on professional credential evaluations for international records rather than a conversion formula.
You know the scale — now climb the other one.
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