Final Grade Calculator

EZ grader: test grade calculator

Enter how many questions are on the test and how many a student got wrong. Get the score, the letter grade and a printable chart for the whole class.

Common test sizes
Grading scale: Standard A–F with + and − · pass at 60%

Saved in this browser and used by every calculator on the site. Compare the scales

Grading a stack? Type the number wrong, or use − and + for the next paper. Everything stays in this browser.

4 wrong out of 20
80%B−

16 right out of 20. Passing

How many can you miss?
A (93%)miss up to 1
B (83%)miss up to 3
C (73%)miss up to 5
Pass at 70%miss up to 6
Pass at 60%miss up to 8
See the 16 out of 20 page

Grading chart: 20 questions

WrongRight%Grade
020100%A+
11995%A
21890%A−
31785%B
41680%B−
51575%C
61470%C−
WrongRight%Grade
71365%D
81260%D−
91155%F
101050%F
11945%F
12840%F
13735%F
WrongRight%Grade
14630%F
15525%F
16420%F
17315%F
18210%F
1915%F
2000%F

The printed chart leaves out the menu and ads and fits on one page for most test sizes.

How the EZ grader works

An EZ grader is the sliding cardboard chart teachers have used for decades: find the number of questions, read across to the number wrong, and the score is printed there. This one does the same in your browser for any test up to 500 questions, with the letter grade on your school's scale.

Score = (Questions − Wrong) ÷ Questions × 100

For a 20-question test with 4 wrong: (20 − 4) ÷ 20 × 100 = 80%, a B− on the standard scale.

Questions

How many can I miss on a 20-question test?

To pass at 70% you can miss up to 6. For a B (83%) you can miss 3, and for an A (93%) only 1. Change the number of questions above to see any other test.

What is an EZ grader?

A grading chart that maps the number of wrong answers to a percentage, so teachers can grade a stack of tests without doing the division for each one. "EZ grader" and "easy grader" are names for the same tool.

Can I print a grading chart?

Yes. Set the number of questions, then press "Print or save as PDF". Only the chart is printed, without the menu or ads. Choose "Save as PDF" in the print window to keep a copy.

How do half points work?

Turn on "Half points" to count half-wrong answers. The number wrong then moves in steps of 0.5, and the chart lists every half step: 4.5 wrong out of 20 is 77.5%.

Can I use my school's grading scale?

Yes. Open "Grading scale" to switch to a plain 90/80/70/60 scale or a 7-point scale, or type your school's own cutoffs. Your choice is saved in this browser and used across the site.