ExamTally → Percentage Grade Calculator
Percentage Grade Calculator
Enter points earned and total points — ExamTally stamps the percentage and letter grade for any assignment, quiz, or exam.
To get a percentage grade, divide the points you earned by the total points and multiply by 100. 45 out of 50 points is 45 ÷ 50 × 100 = 90%, an A on the standard scale. Enter your own points below to stamp the grade.
Grading chart — percentage to letter
| Percentage | Letter | GPA |
|---|
Key takeaways
- Percent = earned ÷ total × 100. Works for any assignment.
- 45 out of 50 → 90% → A.
- Decimals and half points are fine — partial credit counts.
- Letters use the default US scale (A 90+, B 80+, C 70+, D 60+, F < 60).
- Confirm your school's cutoffs — pluses, minuses, and curves vary.
How the percentage grade calculator works
A percentage grade tells you what fraction of the available points you earned. Divide your points by the total points the assignment was worth, then multiply by 100 to express it as a percent. The letter grade comes from comparing that percentage to the standard A–F cutoffs.
The same formula handles a 10-point quiz, a 100-point exam, or a 250-point project. Only the ratio matters, so 9 out of 10 and 90 out of 100 are both 90%.
Worked example: 45 out of 50 points
Start with 45 points earned out of 50 total. Divide: 45 ÷ 50 = 0.90, and 0.90 × 100 = 90%. On the standard scale, 90% is the bottom of the A band, so the stamped grade is an A. Lose two more points (43 out of 50) and the score falls to 86% — a B.
Standard A–F grading scale
| Letter | Percentage | GPA points (4.0) |
|---|---|---|
| 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 |
This is the most common US scale. Your school may use plus/minus grades or different cutoffs — always confirm.
Adding several scored items? Total them with the points grade calculator, or check a question count instead with the test grade calculator and easy grader.
Frequently asked questions
How do you turn points into a percentage grade?
Divide the points you earned by the total points possible, then multiply by 100. For example, 45 out of 50 points is 45 ÷ 50 × 100 = 90%, an A on the standard scale.
What letter grade is each percentage?
On the default US scale: A is 90–100%, B is 80–89%, C is 70–79%, D is 60–69%, and F is below 60%. Schools often add pluses and minuses or shift the cutoffs, so confirm your class’s scale.
What grade is 45 out of 50?
45 ÷ 50 = 0.90, which is 90% — an A. The grading chart below the calculator shows the letter for every percentage band so you can see where a score lands.
Can I use points with decimals or half points?
Yes. Enter any values, including decimals such as 88.5 earned out of 95. The calculator divides and rounds the percentage to one decimal place, so partial credit and half points work fine.
What happens if total points is zero?
A grade needs something to divide by, so a total of zero points has no defined percentage. The calculator treats a zero total as blank and waits for a positive number before stamping a grade.
Is a percentage grade the same as a test grade?
They use the same maths. A test grade is usually points earned out of points possible, which is exactly a percentage. The percentage grade calculator is just the general version that works for any assignment, project, or exam.
The grade calculation is mathematical: percentage equals points earned divided by total points, times 100. Letter-grade bands use the common US scale (A 90+, B 80+, C 70+, D 60+, F below 60); individual schools and districts set their own cutoffs, pluses/minuses, and rounding rules.
Last reviewed 2026-06-28