Test Grade Calculator
Test Grade Calculator
Instant grade Β· Full score table Β· Class grader for teachers
Set the minimum % needed for each letter grade. Useful if your teacher uses a custom scale (e.g. 50% = passing instead of 60%).
Enter each student’s name, correct answers, and total questions. Grades calculate instantly. Perfect for teachers grading a stack of tests.
How to Use the Test Grade Calculator
Follow these steps to calculate your test grade:
- Enter the number of questions answered correctly.
- Enter the total number of questions on the test.
- Click calculate to determine the test score percentage.
- The calculator will automatically display the letter grade.
This process allows students to quickly determine their test grade and evaluate their performance.

Formula Used
The formula used to calculate a test grade is:
Test Grade Percentage = (Correct Answers Γ· Total Questions) Γ 100
Where:
Correct Answers = number of questions answered correctly
Total Questions = total number of questions on the test
This formula determines the percentage score obtained on the test.
Example Calculation
Example:
Correct Answers = 18
Total Questions = 20Calculation:
18 Γ· 20 Γ 100 = 90%
Result:
A 90% test score usually corresponds to an A- letter grade according to most grading systems.
Letter Grade Scale
Most schools convert percentage grades into letter grades using a standard grading scale.
| Percentage | Letter Grade |
|---|---|
| 97β100 | A+ |
| 93β96 | A |
| 90β92 | A- |
| 87β89 | B+ |
| 83β86 | B |
| 80β82 | B- |
| 77β79 | C+ |
| 73β76 | C |
| 70β72 | C- |
| 67β69 | D+ |
| 63β66 | D |
| 60β62 | D- |
| Below 60 | F |
Need to calculate yourΒ grade averageΒ across multiple tests? Use ourΒ grade average calculatorΒ for a full course overview.
Frequently Asked Questions
A test grade calculator is an online tool that helps students calculate their test grade based on the number of correct answers compared to the total number of questions on a test or quiz.
To calculate your test grade, enter the number of correct answers and the total number of questions on the test. The calculator will determine the percentage score and the corresponding letter grade.
Yes. The calculator works for quizzes, tests, exams, and classroom assessments where grades are based on the number of correct answers.
This calculator determines the percentage grade for a test. For courses where tests have different weights in the overall course grade, you may need to use a weighted grade calculator.
The calculator converts the calculated percentage score into a letter grade using a standard grading scale such as A, B, C, D, or F.
Yes. This free grade calculator allows students and teachers to quickly determine test scores without performing manual calculations.
Yes. The calculator works smoothly on smartphones, tablets, and desktop devices so students can calculate grades from any device.
