Test Grade Calculator
Teachers and students alike can use our free Test Grade Calculator to instantly convert the number of wrong or correct answers into a percentage and letter grade.
45 correct out of 50 total questions (5 missed)
Grading Chart for 50 Questions
What is the Test Grade Calculator - Calculate Quiz & Exam Scores?
The Test Grade Calculator is a simple educational utility that computes the final percentage and corresponding letter grade of an assessment based on the total number of questions and the number answered incorrectly.
How to use the Test Grade Calculator - Calculate Quiz & Exam Scores
- Enter the total number of questions on the test.
- Enter how many questions were answered incorrectly (or correctly, depending on your preference).
- The tool will instantly display the final percentage and letter grade.
Example
If a test has 40 total questions and a student got 6 wrong: 40 - 6 = 34 correct. 34 / 40 = 0.85. Multiply by 100 to get an 85% (B).
Understanding Your Results
The result gives you a clear, objective percentage score and a standard letter grade, making it easy to record in a gradebook or understand academic performance.
Common Use Cases
- Teachers: Grading stacks of multiple-choice tests quickly without manually doing the math.
- Students: Checking what score they received after finding out how many questions they missed.
- Homeschooling: Maintaining accurate grading records for standard assessments.
How it Works
The calculator subtracts the number of wrong answers from the total questions to find the number of correct answers. It then divides the correct answers by the total questions and multiplies by 100 to find the percentage.
Tips & Accuracy Notes
- •The default letter grade scale is standard (90+=A, 80+=B, etc.), but grading scales can vary by school district.
- •This tool assumes every question on the test is worth the exact same number of points.
Frequently Asked Questions
Can I use half-points?
Yes, the calculator supports decimals. If a student got 2.5 questions wrong out of 10, it will calculate the grade accurately.
What if questions have different point values?
If questions are weighted differently, you should use a standard Grade Calculator instead, entering the total points earned versus total points possible.
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Disclaimer: Letter grades provided are based on a standard American 10-point scale. Your institution may use a different grading rubric.