Strong showing. A small push gets you to A territory.
Letter Grade Calculator – Convert Scores Into Letter Grades Easily
Understanding your academic performance is much easier when you can see your score as a letter grade. Our Letter Grade Calculator converts any percentage or marks-out-of-total into A, B, C, D, or F instantly, using the standard US grading scale. It's a quick reference for students checking their grades, teachers reviewing classwork, and parents keeping tabs on progress.
Standard grading scale
| Percentage | Letter grade | GPA (4.0 scale) |
|---|---|---|
| 93 – 100% | 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 |
Many schools use slight variations of this scale. Always check your syllabus or institution's grading policy for exact thresholds.
How it works
Enter a percentage directly, or switch to "Marks / total" and enter the raw score. The calculator converts to a percentage and matches it against the standard scale to return the letter grade and equivalent GPA point value.
Example calculation
- • 95% → A
- • 84% → B
- • 76% → C
- • 68% → D+
- • 52% → F
Who can use this calculator
- • School students
- • College and university students
- • Teachers grading work
- • Parents reviewing progress
- • Anyone converting a raw score to a letter
Why use it
- • Instant conversion
- • Standard US scale
- • Works for percentages or raw marks
- • Mobile friendly
- • Free to use
Frequently asked questions
What is a letter grade calculator?
Converts your percentage or test score into A, B, C, D, or F.
How are letter grades calculated?
Your percentage is matched against your institution's grading scale.
Can teachers use this calculator?
Yes.
Does every school use the same grading scale?
No — it varies by school, college, or country.
Can I convert exam scores into letter grades?
Yes — exams, quizzes, and assignments.
Is this calculator accurate?
Yes, using standard academic grading methods.
Can students use this on mobile?
Yes — phones, tablets, and desktops.
Is this calculator free?
Yes.