Letter Grade Calculator
Turn a percentage into a letter grade on the standard US scale. Enter a score to see the letter and its GPA points, with the full chart from A+ to F.
Your numbers
Result
- Percentage
- 85%
| Percentage | Letter | GPA |
|---|---|---|
| 93–100 | A | 4 |
| 90–92 | A- | 3.7 |
| 87–89 | B+ | 3.3 |
| 83–86 | B | 3 |
| 80–82 | B- | 2.7 |
| 70–79 | C | 2 |
| 60–69 | D | 1 |
| below 60 | F | 0 |
The standard US scale
Most US schools use: A 90–100, B 80–89, C 70–79, D 60–69, and F below 60, with plus and minus splitting each band into thirds (an 88% is a B+, an 81% a B-). The exact cut-offs can vary by school, but this is the common baseline the calculator uses.
Letters and GPA
Each letter maps to grade points on the 4.0 scale: A = 4.0, B = 3.0, C = 2.0, D = 1.0, F = 0.0, with the minus and plus grades landing at the 0.7/3.3 style steps between. Those points are what a GPA averages across courses — enter several into the GPA calculator to combine them.
Check your syllabus
Grading scales are not universal. Some schools cut A at 94 instead of 90, some do not use pluses and minuses, and a few use a 10-point straight scale. Always confirm against your syllabus — this tool gives the most widely used version.
Frequently asked questions
Sources
- Standard US letter-grade scale (A–F with +/−)
Related calculators
GPA
Calculate your GPA on the 4.0 scale from your letter grades and credit hours. Enter grades like A, B+, A- and the credits for each course to get a credit-weighted GPA.
CalculateEducation & GradesGrade Average
Average a list of grades or test scores as percentages, and see the letter grade that average earns. Enter the scores separated by commas.
CalculateEducation & GradesTest Score
Turn the number of correct answers out of the total into a percentage score and a letter grade. Great for grading quizzes and tests fast.
Calculate