How does an EZ grader work?

Each question is worth 100 divided by the number of questions. Subtract the number wrong from the total, divide by the total and multiply by 100. On a 25-question test, each question is worth 4%, so 3 wrong is 88%.

Can I print the grading chart?

Yes. Use the Print chart button. Only the chart prints, so you can keep it beside a stack of tests.

Does it handle half points?

Yes. Turn on half points and the chart goes up in steps of 0.5.

What if my questions are worth different points?

Switch to Grade by points. Enter the test's total points and the points the student lost. A 60-point test with 7 points lost is 88.33%, whatever the mix of question values.

Can I use my own grading scale?

Yes. Choose My own scale and enter the lowest percentage for an A, B, C and D, for example 94, 85, 75 and 65. It's saved in your browser and used on every calculator on the site.

Is this the same as the old paper EZ Grader?

It does the same job as the sliding paper grader many teachers used: questions and number wrong in, percentage out. This one also shows the letter grade and works on a phone.

EZ grader: quick grading chart for teachers

How the EZ grader works

Score = (questions − wrong) ÷ questions × 100

Each question is worth 100 ÷ questions percent. On a 25-question test that's 4% a question, on a 30-question test 3.33%, and on a 40-question test 2.5%.

Tests with questions worth different points

If some questions are worth more than others, switch to Grade by points. Enter the test's total points and the points lost, and the chart lists every possible score by points lost.

Score = (total points − points lost) ÷ total points × 100

A 60-point test with 7 points lost: 53 ÷ 60 × 100 = 88.33%.

Using your own grading scale

Many schools don't use 90/80/70/60. Choose My own scale and enter your cutoffs, for example 94 for an A, 85 for a B, 75 for a C and 65 for a D. The letters in the chart follow your scale, and it's remembered on every calculator on this site in the same browser.

Worked example

A 25-question test with 3 wrong: 22 ÷ 25 × 100 = 88%, a B+ on the A+ to F scale. With 7 wrong it's 72%, a C-.

Tips for faster grading

Print the chart once per test length and keep it with your answer key.
For tests with questions worth different points, use the grade calculator with points earned and possible instead.
To curve the class's scores after grading, use the grade curve calculator.

Common questions

How does an EZ grader work?: Each question is worth 100 divided by the number of questions. Subtract the number wrong from the total, divide by the total and multiply by 100. On a 25-question test, each question is worth 4%, so 3 wrong is 88%.
Can I print the grading chart?: Yes. Use the Print chart button. Only the chart prints, so you can keep it beside a stack of tests.
Does it handle half points?: Yes. Turn on half points and the chart goes up in steps of 0.5.
What if my questions are worth different points?: Switch to Grade by points. Enter the test's total points and the points the student lost. A 60-point test with 7 points lost is 88.33%, whatever the mix of question values.
Can I use my own grading scale?: Yes. Choose My own scale and enter the lowest percentage for an A, B, C and D, for example 94, 85, 75 and 65. It's saved in your browser and used on every calculator on the site.
Is this the same as the old paper EZ Grader?: It does the same job as the sliding paper grader many teachers used: questions and number wrong in, percentage out. This one also shows the letter grade and works on a phone.