EDUCATION CALCULATOR
Grade Calculator
Calculate your percentage and letter grade from the points you earned and the total points possible.
Enter the points you earned and the total number of points possible.
How to Calculate Your Grade
To calculate a percentage grade, divide the points you earned by the total points possible and multiply the result by 100.
Percentage = (points earned ÷ points possible) × 100
Grade Calculator Example
Suppose you earned 85 points on an assignment worth 100 points.
The percentage is:
(85 ÷ 100) × 100 = 85%
Using the grading scale used by this calculator, an 85% corresponds to a B.
Common Letter Grade Scale
This calculator uses the following percentage ranges:
- A+: 97%–100%
- A: 93%–96.99%
- A-: 90%–92.99%
- B+: 87%–89.99%
- B: 83%–86.99%
- B-: 80%–82.99%
- C+: 77%–79.99%
- C: 73%–76.99%
- C-: 70%–72.99%
- D+: 67%–69.99%
- D: 63%–66.99%
- D-: 60%–62.99%
- F: Below 60%
Grading scales can vary between schools, teachers, colleges, and courses. If your institution uses a different scale, use its official grading policy when interpreting your result.
Points-Based Grades
Points-based grading is common for assignments, quizzes, exams, and projects. The number of points possible can vary for each assessment.
For example, if you score 45 points out of 50:
(45 ÷ 50) × 100 = 90%
Your percentage grade would therefore be 90%.
What If I Know My Percentage?
If you already know your percentage, you can use the letter-grade ranges above to determine the corresponding letter grade under this calculator's scale.
For calculating your overall grade when you have multiple assignments with different weights, a weighted grade calculation may be more appropriate.
Grade vs. GPA
A grade represents your performance on an assignment, test, course, or other assessment. GPA, or grade point average, combines course grades into an overall average using a grading-point system.
If you want to calculate your overall grade point average, use our GPA Calculator.
Frequently Asked Questions
How do I calculate my grade percentage?
Divide the points you earned by the total points possible and multiply by 100. For example, 85 out of 100 points equals 85%.
What grade is 90 percent?
Using the grading scale in this calculator, 90% is an A-.
What grade is 85 percent?
Using the grading scale in this calculator, 85% is a B.
What grade is 80 percent?
Using the grading scale in this calculator, 80% is a B-.
What grade is 70 percent?
Using the grading scale in this calculator, 70% is a C-.
Is this grading scale universal?
No. Schools and instructors can use different grading scales. The calculator provides a common reference scale, but you should use your school's official grading policy when necessary.