Test Grade Calculator
Find your test percentage and letter grade.
Results update as you type.
How it works
After a test, you want to know your score and grade, and this calculator gives both instantly. You enter the points you earned and the total points possible, and it returns your score as a percentage and the corresponding letter grade. The percentage is simply your points divided by the total, times 100, and the letter grade follows the common United States scale where 90 and above is an A, 80 to 89 a B, 70 to 79 a C, 60 to 69 a D, and below 60 an F. This is useful for students checking a test result before grades are posted, estimating a grade from a marked paper, or figuring out how a score translates to a letter. It works for any assessment scored out of a total, whether a quiz out of 20, an exam out of 100, or a project out of 150. Keep in mind that grading scales vary: some schools and instructors use plus and minus grades (like B+ or C-), different cutoffs, or weighted categories, so your actual grade may differ from this standard scale. Teachers may also curve grades or round differently. Use this as a quick, standard estimate, and check your syllabus for your specific grading policy. To see what you need on a future assignment to reach a target grade, a final grade calculator is the right tool. Enter your points earned and possible to find your score and letter grade.
Score = (points earned / points possible) × 100
Your test score as a percentage is the points you earned divided by the total points possible, multiplied by 100. The letter grade is then assigned from the percentage using a standard scale: 90+ is A, 80–89 is B, 70–79 is C, 60–69 is D, and below 60 is F.
Source:Grading scale
We review all our tools from time to time to ensure accuracy.
Worked example
How to use this calculator
- 1
Enter your values
Enter points earned and points possible.
- 2
Adjust the options
Fine-tune any options to match your situation.
- 3
Read your result
Score updates instantly as you type — no button to press.
Frequently asked questions
How do I calculate a test grade?
Divide the points you earned by the total points possible, then multiply by 100 for a percentage. For example, 42 out of 50 is 84 percent. The calculator then assigns a letter grade from the percentage using a standard scale, giving you both your numeric score and its letter equivalent.
What is the standard letter grade scale?
The common United States scale is: 90 percent and above is an A, 80 to 89 is a B, 70 to 79 is a C, 60 to 69 is a D, and below 60 is an F. Many schools add plus and minus grades within these bands, and some use different cutoffs, so check your school's specific policy.
Does this work for any test?
Yes. The calculation works for any assessment scored out of a total, whether a quiz out of 20 points, an exam out of 100, or a project out of 150. Just enter the points you earned and the total possible, and the calculator returns the percentage and letter grade regardless of the point total.
Why might my actual grade differ?
Grading policies vary. Your instructor may use plus and minus grades, different percentage cutoffs, weighted categories where tests count more or less than homework, extra credit, curves, or specific rounding rules. This calculator uses a standard scale for a quick estimate, so always check your syllabus for the exact grading policy that applies to you.
How do I find what I need on the final to reach a grade?
This calculator scores a single test. To determine what grade you need on a future exam or assignment to achieve a target overall grade, use a final grade calculator, which accounts for your current grade, the weight of the remaining assessment, and your goal to compute the required score.