Easy Grader - Test Grade Calculator & Grading Chart | QuickToolCenter

Total questionsWrong answers

Correct37 / 40

Percentage92.50%

Letter gradeA

Letter grades use a common 90/80/70/60 scale. Schools and instructors may use different grading policies.

Show full grading table

Wrong	Correct	Score	Grade
0	40	100.00%	A
1	39	97.50%	A
2	38	95.00%	A
3	37	92.50%	A
4	36	90.00%	A
5	35	87.50%	B
6	34	85.00%	B
7	33	82.50%	B
8	32	80.00%	B
9	31	77.50%	C
10	30	75.00%	C
11	29	72.50%	C
12	28	70.00%	C
13	27	67.50%	D
14	26	65.00%	D
15	25	62.50%	D
16	24	60.00%	D
17	23	57.50%	F
18	22	55.00%	F
19	21	52.50%	F
20	20	50.00%	F
21	19	47.50%	F
22	18	45.00%	F
23	17	42.50%	F
24	16	40.00%	F
25	15	37.50%	F
26	14	35.00%	F
27	13	32.50%	F
28	12	30.00%	F
29	11	27.50%	F
30	10	25.00%	F
31	9	22.50%	F
32	8	20.00%	F
33	7	17.50%	F
34	6	15.00%	F
35	5	12.50%	F
36	4	10.00%	F
37	3	7.50%	F
38	2	5.00%	F
39	1	2.50%	F
40	0	0.00%	F

How to use the Easy Grader

Enter the total number of questions on the test or assignment.
Enter how many answers were incorrect.
The calculator subtracts wrong answers from the total to find the number correct.
The percentage equals correct answers divided by total questions multiplied by 100.
The grading table lists every possible number of wrong answers with its percentage and common letter grade.

Examples

37 correct out of 40

If 3 answers are wrong on a 40-question test, 37 are correct and the score is 92.5%.

18 correct out of 20

Two wrong answers on a 20-question test gives 18 correct, which equals 90%.

45 correct out of 50

Five wrong answers on a 50-question test produces a score of 90%.

Frequently asked questions

How do I calculate a test grade?

Subtract wrong answers from total questions, divide the number correct by the total, then multiply by 100.

What grade is 3 wrong out of 40?

Three wrong answers means 37 correct. Dividing 37 by 40 gives 92.5%.

What letter-grade scale does this grader use?

The displayed letter grade uses a common scale of A at 90% or higher, B at 80%, C at 70%, D at 60% and F below 60%.

Can my school use a different grading scale?

Yes. Schools, courses and instructors may use different thresholds, so the percentage is the primary calculation.

What is a grading chart?

A grading chart lists the percentage associated with each possible number of correct or incorrect answers on a test.

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