Need to calculate GPA across multiple classes instead? Use the full GPA calculator — it takes letter or percentage grades, with credits and semesters.
How to use this converter
- Enter your percentage (0–100) in the box above.
- Read the letter grade — it converts on the standard cutoffs shown in the table below.
- Pick the right GPA column for the class: Regular for a standard class, Honors (+0.5) or AP/IB (+1.0) if the class is weighted.
- Repeat for another score — just type over the number.
How the percentage-to-GPA conversion works
The conversion runs in two steps. First, your percentage maps to a letter grade using the standard US cutoffs (93+ is an A, 90–92 is an A-, 87–89 is a B+, and so on). Second, that letter converts to grade points on the 4.0 scale — the same table every GPA calculation uses:
Percentage → letter grade → grade points
For weighted classes, a rigor bonus is added on top: +0.5 for Honors and +1.0 for AP or IB. One exception, consistent with how transcripts work: an F earns no bonus — weighting rewards passing the harder class, not enrolling in it. This is the exact same conversion the full calculator applies when you switch it to percentage input, so a score converts identically in both tools.
Percentage to GPA conversion table
| Percentage | Letter grade | Regular | Honors (+0.5) | AP / IB (+1.0) |
|---|---|---|---|---|
| 97–100% | A+ | 4.0 | 4.5 | 5.0 |
| 93–96% | A | 4.0 | 4.5 | 5.0 |
| 90–92% | A- | 3.7 | 4.2 | 4.7 |
| 87–89% | B+ | 3.3 | 3.8 | 4.3 |
| 83–86% | B | 3.0 | 3.5 | 4.0 |
| 80–82% | B- | 2.7 | 3.2 | 3.7 |
| 77–79% | C+ | 2.3 | 2.8 | 3.3 |
| 73–76% | C | 2.0 | 2.5 | 3.0 |
| 70–72% | C- | 1.7 | 2.2 | 2.7 |
| 67–69% | D+ | 1.3 | 1.8 | 2.3 |
| 63–66% | D | 1.0 | 1.5 | 2.0 |
| 60–62% | D- | 0.7 | 1.2 | 1.7 |
| Below 60% | F | 0.0 | 0.0 | 0.0 |
These are the most common cutoffs at US high schools, but they're a convention, not a law — some districts run a 7-point scale or skip plus/minus entirely. The variations are compared in the GPA scale explained.
Frequently asked questions
What percentage is a 4.0 GPA?
On the standard cutoffs, 93% and above converts to an A or A+, both worth 4.0 grade points. Scores of 90–92% convert to an A-, which is 3.7 — so a 4.0 GPA generally means averaging 93% or better in every class.
What GPA is an 85%?
An 85% falls in the 83–86% range, which converts to a B — worth 3.0 GPA points in a regular class, 3.5 in an Honors class (+0.5), and 4.0 in an AP or IB class (+1.0).
Does this converter match my school's exact cutoffs?
It uses the most common US cutoffs (93+ = A, 90–92 = A-, 87–89 = B+, and so on), but districts vary — some use a 7-point scale where 93–100 is an A and 85–92 is a B, and some don't use plus/minus at all. Check your student handbook for your school's official table; this converter is the standard convention, not a universal rule.
How do I convert my overall percentage average to a GPA?
Convert each class's percentage separately, then average the resulting grade points — don't convert your overall percentage average in one step. A 91% average could be all A- classes (3.7 GPA) or a mix of A+ and B classes (closer to 3.5), so converting per class is the only accurate way. The full GPA calculator does this for you in percentage mode.