Grading scale tool
Letter grade to percentage converter
Pick a letter grade to see its percentage range and GPA. Or enter a percentage to see the letter grade.
Percentage range
83–86%
A B is 83% to 86%. GPA: 3.0.
Letter grade to percentage chart
This is the most common plus/minus scale in US schools and colleges, with GPA points on a 4.0 scale.
| Letter grade | Percentage | GPA (4.0 scale) |
|---|---|---|
| A+ | 97–100% | 4.0 |
| A | 93–96% | 4.0 |
| A- | 90–92% | 3.7 |
| B+ | 87–89% | 3.3 |
| B | 83–86% | 3.0 |
| B- | 80–82% | 2.7 |
| C+ | 77–79% | 2.3 |
| C | 73–76% | 2.0 |
| C- | 70–72% | 1.7 |
| D+ | 67–69% | 1.3 |
| D | 63–66% | 1.0 |
| D- | 60–62% | 0.7 |
| F | Below 60% | 0.0 |
Scores between whole numbers, like 86.5%, count as the lower grade unless your school rounds up.
The standard A–F scale
Many teachers skip pluses and minuses and use five grades. Each one covers 10 points.
| Letter grade | Percentage | GPA (4.0 scale) |
|---|---|---|
| A | 90–100% | 4.0 |
| B | 80–89% | 3.0 |
| C | 70–79% | 2.0 |
| D | 60–69% | 1.0 |
| F | Below 60% | 0.0 |
How to turn a score into a letter grade
First get the score as a percentage. Divide the points earned by the points possible, then multiply by 100.
Example: 43 out of 50 points. 43 ÷ 50 = 0.86, so that's 86%. On the chart, 86% is a B. Without pluses and minuses, it's also a B.
Grading a test by the number wrong? The quick grader does this for you and shows a chart for the whole test.
Not every school uses this scale
There's no single US grading scale. Some schools use a 7-point scale, where an A starts at 93% and a D at 70%.
Some colleges don't give an A+, or count it as 4.3 instead of 4.0. Always check your syllabus or school handbook for the exact cutoffs.
Frequently asked questions
What percentage is an A?
On the standard scale, an A is 90% to 100%. With plus and minus grades, 97–100% is an A+, 93–96% is an A, and 90–92% is an A-.
What percentage is a B+?
A B+ is 87% to 89% on the common plus/minus scale. It's worth 3.3 on a 4.0 GPA scale.
Is an 89.5% an A or a B?
It depends on your school. With no rounding, 89.5% is a B+. Many teachers round .5 and up to the next whole number, which makes it 90% and an A-. Check your syllabus.
What is a passing grade?
In most US schools, 60% (a D-) is the lowest passing grade. Some classes, programs, and colleges need a C (70%) or higher to pass or to count toward a major.
What GPA is a B?
A B is a 3.0. A B+ is 3.3 and a B- is 2.7 on the 4.0 scale.
Why does my school use different cutoffs?
There's no single national scale in the US. Each school or district sets its own. Some use a 7-point scale, where an A starts at 93%. Your school handbook or syllabus has the exact scale.
Related tools
- Grading a test? Use the quick grader →
- Need a weighted average? Weighted grade calculator →
- See all grading tools →