A common percentage-to-letter reference for quick checking. Your school, instructor, or institution may use different boundaries.
| Percentage | Letter | General description |
|---|---|---|
| 97–100% | A+ | Exceptional |
| 93–96.99% | A | Excellent |
| 90–92.99% | A− | Excellent |
| 87–89.99% | B+ | Very good |
| 83–86.99% | B | Good |
| 80–82.99% | B− | Good |
| 77–79.99% | C+ | Average+ |
| 73–76.99% | C | Average |
| 70–72.99% | C− | Average− |
| 67–69.99% | D+ | Below average |
| 63–66.99% | D | Low pass |
| 60–62.99% | D− | Low pass |
| Below 60% | F | Fail |
First calculate the exact percentage for your assignment or course. Then find the percentage range that includes your score. The corresponding letter is a reference only; some instructors use plus/minus systems, curves, or custom boundaries.
Grade Calculator for current points, Weighted Grade Calculator for category weights, and Test Grade Calculator for one assessment.
Schools and instructors set their own pass/fail thresholds and letter-grade boundaries as institutional or course policy — there's no single legally mandated standard, so always defer to your syllabus over any general reference.
Yes, the reference table above includes plus/minus boundaries (A+, A, A−, and so on). Some schools use a simpler letter-only scale without pluses or minuses — check your syllabus to see which your course uses.
GPA conversion depends on your school's specific scale (commonly 4.0, but not always). Use your percentage to find the letter grade here first, then check your institution's GPA table for that letter's point value.