What Is a Grade Calculator?
A grade calculator (also called an EZ Grader or easy grader) is a tool that converts the number of correct answers on a test into a percentage score and letter grade. Teachers use grade calculators to quickly score papers without doing mental math for every student.
This free online grade calculator replaces the classic plastic EZ Grader sliding scale. Enter the total number of questions and the number of wrong answers, and instantly see the percentage, letter grade, and a complete grading chart for every possible score on your test.
Whether you need a test grade calculator for a 20-question quiz or a 100-question final exam, this tool handles it instantly. It supports three grading scales (Standard A-F, Plus/Minus, and 10-Point), generates a printable grade chart, and includes a "what score do I need on the final?" calculator for students.
How Teachers Use Grade Calculators
The most common workflow: print the full grading chart for your test length and keep it at your desk. As you grade each paper, count the wrong answers and look up the score on the chart. This is faster than mental math and eliminates errors.
Want to skip manual grading entirely? Our AI Quiz Maker generates quizzes that are automatically graded when students take them online. Pair it with our AI Rubric Generator for a complete assessment toolkit.