Enter the total number of questions and the number wrong to get an instant grade percentage and letter grade. The Easy Grader also generates a full grade chart showing every possible score — perfect for grading a whole stack of tests at once. Toggle half-point scoring and customize grade scale thresholds to match your classroom standards.
Grade Percentage
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Letter Grade
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Questions Correct
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Questions Wrong
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The Easy Grader divides the number of correct answers by the total number of questions, then multiplies by 100 to get a percentage. For example, if a student gets 3 wrong out of 20 questions, they scored 17/20 = 85%.
The standard scale assigns A for 90–100%, B for 80–89%, C for 70–79%, D for 60–69%, and F for anything below 60%. You can switch to a strict or easy grading scale using the Grading Scale dropdown to match your school's policy.
The Full Grade Chart lists every possible number of wrong answers from 0 up to the total questions, showing the resulting percentage and letter grade for each. This lets teachers quickly look up a score for any student without re-entering data.
Yes — enable the 'Allow Half Points' toggle. This allows scores to be calculated using 0.5-point increments, which is useful when partial credit is awarded or when questions carry fractional point values.
The Easy Grader supports tests with up to 500 questions, covering everything from short 5-question quizzes to large final exams.
Yes — the number of wrong answers cannot exceed the total number of questions. The calculator will flag this as invalid input and prompt you to correct the values before displaying a result.
Letter grades with plus/minus are assigned based on where your percentage falls within each grade band. For example, under the standard scale, 97–100% is an A+, 93–96% is an A, and 90–92% is an A−. Each band is split into three roughly equal parts.
You can choose from three preset grading scales — Standard, Strict, and Easy — using the Grading Scale selector. Each preset shifts the cutoff points for A, B, C, D, and F grades to match common school policies.