Grading Scale Generator

Divide the number of correct answers by the total number of questions, then multiply by 100. For example, if a student gets 17 correct out of 20, the score is (17 ÷ 20) × 100 = 85%. This generator does that math automatically for every possible number of wrong answers.

The most common U.S. grading scale assigns letter grades based on percentage ranges: A (90–100%), B (80–89%), C (70–79%), D (60–69%), and F (below 60%). Many schools also use a plus/minus system that adds finer distinctions like A-, B+, and so on.

Yes — 27 out of 40 equals 67.5%, which is above the typical 60% passing threshold and would earn a D on a standard scale. Under a stricter 70% passing requirement it would be considered failing. Use this generator with 40 total questions to see the full scale.

Getting 7 wrong out of 40 means 33 correct, which is 82.5% — a solid B on a standard scale. Enter 40 in the Total Questions field and 7 in the Number Wrong field to see this highlighted in the chart.

Yes — 75 out of 80 is 93.75%, which falls in the A range (90%+) on a standard grading scale. It may qualify as an A- under a plus/minus scale depending on the threshold your school uses.

Absolutely. Select 'Custom Thresholds' in the Grading Scale Style dropdown, then enter your own minimum percentages for A, B, C, and D grades. The generator rebuilds the entire chart based on your cutoffs — useful for curved exams or non-standard rubrics.

An EZ Grader is a physical sliding card tool teachers use to quickly convert number wrong into a percentage score. This generator creates the same chart digitally for any number of questions, with the added ability to customize grade boundaries and switch between grading scale styles.

A plus/minus scale splits each letter grade into three bands. For example, A+ is 97–100%, A is 93–96%, and A- is 90–92%. Select 'Plus/Minus' in the Grading Scale Style dropdown to see the full breakdown applied to your specific number of questions.