How it works
This test score calculator asks for one thing: the number of questions. The chart then gives the right answers, the grade percentage and the letter for each number wrong, from none to all of them.
Read the full guide
Make the chart for your test
Type how many questions the test has, from 1 to 200, or press 10, 20, 50 or 100. A 27-question quiz gives 28 rows: 4 wrong is 85.19%, a B, and 6 wrong is 77.78%, a C. Press 100 for a grade out of 100, where each wrong answer costs one point.
Print it or copy it
Print this chart puts the grade chart on paper to keep beside the stack. Copy the chart gives the same rows as text with tabs, ready to paste into a spreadsheet.
How the grade percentage chart is worked out
Percent = right answers ÷ questions × 100, to two decimal places at most. The letter goes by that percent as it stands and is never rounded up: 179 right of 200 is 89.5%, a B.
Questions and answers
How to grade a test from the number wrong?
Count the wrong answers on a paper, find that number in the Wrong column and read across: the percent and the letter are on the same row. One chart serves the whole stack, because every paper has the same number of questions.
Is this a quiz grade calculator too?
Yes. Type 10 for a ten-question quiz and each wrong answer costs 10 percentage points; type 5 and each costs 20. It works as a grade percentage calculator for any count from 1 to 200.
Is there a grading chart for teachers to print?
Yes. Print this chart puts every number wrong, its percent and its letter on paper. Up to 200 questions fit on one sheet, in up to four columns. With half points one sheet holds 101 questions and a longer test takes two.
How are half points counted?
Tick Count half points and the chart gains a row for each half. On a 20-question test, 1.5 wrong is 18.5 right: 92.5%, an A. Use it when a part-right answer earns half credit.
Which grade percentage is an A, B, C, D or F?
On the 90-80-70-60 scale used here, 90% and up is an A, 80% a B, 70% a C, 60% a D and anything lower an F. Florida law sets that scale for its public schools in grades 6 to 12. Your own school's scale decides.