✅
Test Grade Calculator
Enter the total number of questions and how many you answered correctly to find your test percentage and letter grade.
How this calculator works
Your test percentage score is simply the number of questions you answered correctly divided by the total number of questions, multiplied by 100. This calculator does that division for you and also maps the result to a common US-style letter grade.
Formula: Percentage = (Correct Answers ÷ Total Questions) × 100.
- Enter the total number of questions on the test.
- Enter how many you answered correctly.
- The calculator shows your percentage, an approximate letter grade, and how many questions you missed.
This tool is for general educational use; actual grading scales vary by school and instructor.
Last reviewed August 2026