Use this grade percentage checker to turn points earned and points possible into a percentage and an estimated letter grade instantly.
Whether you call it a grade calculator, a test score percentage checker, or just “figuring out my grade,” this tool covers the same basic math teachers and students use every day.
Grade Checker
Points Earned:
Points Possible:
Percentage: —
Estimated Letter Grade: —
What This Grade Checker Does
A grade percentage checker takes the two numbers already on your paper or gradebook, points earned and points possible, and converts them into the percentage your grade is actually based on. From there it estimates a letter grade using a standard U.S. grading scale, so you get a quick read on where a score lands without doing the division by hand.
Grading scales vary by school, teacher, and country, so treat the letter grade here as a common-scale estimate rather than an official result. The percentage itself is exact math and will match your gradebook regardless of which scale your class uses.
How to Use This Calculator
- Points Earned: enter the number of points or marks you scored.
- Points Possible: enter the total number of points available on the assignment or test.
- Click Calculate to see your percentage and an estimated letter grade.
Example: 42 points earned out of 50 possible is 84.00%, which lands in the B range on the standard scale below.
Standard Grading Scale
This is the most common U.S. letter-grade scale. Many schools use variations, such as adding plus/minus grades or shifting the cutoffs slightly, so check your syllabus for the exact scale your class follows.
| Percentage | Letter Grade |
|---|---|
| 90–100% | A |
| 80–89% | B |
| 70–79% | C |
| 60–69% | D |
| Below 60% | F |
Did You Know?
- The A-F letter grade scale traces back to a system introduced at Mount Holyoke College in 1897, which originally included an “E” grade before it was dropped in many systems to avoid confusion with “Excellent.”
- Some countries use entirely different scales, such as a 1-6 system in Germany (where 1 is best) or a 0-20 system common across much of Europe and Latin America.
- Weighted grades (like extra credit or a curve) change the points-possible or points-earned numbers going into the calculation, not the percentage formula itself.
Frequently Asked Questions
How do I calculate my grade percentage?
Divide points earned by points possible, then multiply by 100. For 42 out of 50, that’s (42 / 50) x 100 = 84%.
Does this work for weighted or curved grades?
Yes, as long as you enter the final points earned and points possible after any curve or weighting has already been applied, the percentage math is the same.
Why doesn’t the letter grade match my school’s scale?
Grading scales vary between schools and even between individual teachers. This tool uses a common standard scale as a reference point; your school’s official scale is whatever is listed on your syllabus or gradebook.
Can I use this for an overall course grade, not just one test?
Yes, if you already have your total points earned and total points possible across the course. If different assignments are weighted differently, add up the weighted points first before entering the totals here.