Grade a stack of tests

How it works

Enter the number of questions once. The chart below fills in with every possible number wrong, from a perfect paper down to zero right, so you can grade the whole stack from one page instead of retyping each test.

The Number wrong box is for a single paper: type it and the big readout updates as you go, with the matching chart row highlighted. Print the chart and you have the same thing on paper, which is what the old plastic slide grader did.

Good to know

Letter cutoffs vary by school and district. This page uses the common default in the United States: A is 90 and up, B is 80 to 89, C is 70 to 79, D is 60 to 69, and F is anything below 60. Plenty of schools use plus and minus bands, a 93 cutoff for A, or a 50 floor for F. The percentage is the fact; the letter is only the common default, so check your own grade book policy before it goes in the book.

Percentages are rounded to one decimal place. The number shown is the rounded value of correct divided by total, so 17 of 20 reads as 85.0 percent and 5 of 6 reads as 83.3 percent. A score sitting right on a cutoff after rounding, like 89.95, is a judgment call that belongs to you and not to a calculator.

Every question counts the same here. If your test weights some questions more than others, or gives partial credit, this chart will not match. It grades a plain right-or-wrong stack.

Check for yourself that nothing is sent anywhere

You don't have to take our word for it. Every browser has a built-in panel that shows everything a page sends or receives over the internet. On a computer (this doesn't work on a phone):

1. Press F12, or right-click anywhere on this page and choose Inspect.
2. In the panel that opens, click the Network tab.
3. Now use the tool: type a number of questions and watch the result update.
4. Watch the Network list. Nothing appears, because the numbers you typed are never sent anywhere. The chart is built entirely on your own computer.