Grade Calculator
Calculate your average score, percentage, and letter grade from your assignments, tests, quizzes, or exams.
Enter the points you earned and the points possible for each assessment to calculate your overall grade.
Calculate Your Grade
Add each assignment, test, quiz, or exam below.
Grade Calculation Result
How the Grade Calculator Works
The Grade Calculator adds the points you earned across your assessments and compares them with the total points possible.
The basic percentage formula is:
For example, if you earn 85 points out of 100 possible points, your percentage is 85%.
When assessments have different point values, the calculator uses the total points earned and total points possible. This means an assessment worth more points has a greater effect on the overall percentage.
Common Letter Grade Scale
Letter-grade boundaries can vary between schools, colleges, universities, and instructors. The following is a commonly used percentage-based scale.
| Percentage | Letter Grade |
|---|---|
| 90% – 100% | A |
| 80% – 89.99% | B |
| 70% – 79.99% | C |
| 60% – 69.99% | D |
| Below 60% | F |
Check your school's grading policy if it uses different percentage boundaries or plus/minus grades.
Grade Calculator Example
Suppose you have three assessments:
| Assessment | Points Earned | Points Possible |
|---|---|---|
| Test 1 | 85 | 100 |
| Quiz | 45 | 50 |
| Assignment | 90 | 100 |
Total points earned = 220. Total points possible = 250.
Percentage = (220 ÷ 250) × 100 = 88%.
Using the common scale above, an 88% score corresponds to a B.
Frequently Asked Questions
What does the Grade Calculator calculate?
It calculates your total points earned, total points possible, overall percentage, and an estimated letter grade.
How is the overall percentage calculated?
The calculator divides your total points earned by your total points possible and multiplies the result by 100.
Can I add multiple assessments?
Yes. Use the Add Assessment button to include additional assignments, quizzes, tests, or exams.
Does every school use the same letter-grade scale?
No. Grading scales can vary between schools and instructors. The calculator uses a common percentage-based scale as an estimate.
Do I need to register to use the calculator?
No. You can use the Grade Calculator directly in your browser without registration.