Test Grade Calculator — Score & Grading Chart

Result

Score

85%

34 of 40 correct · B

Each question is worth

2.5%

Grading chart

Wrong	Correct	Score	Letter
0	40	100%	A
1	39	97.5%	A
2	38	95%	A
3	37	92.5%	A-
4	36	90%	A-
5	35	87.5%	B+
6	34	85%	B
7	33	82.5%	B-
8	32	80%	B-
9	31	77.5%	C+
10	30	75%	C
11	29	72.5%	C-
12	28	70%	C-
13	27	67.5%	D+
14	26	65%	D
15	25	62.5%	D-
16	24	60%	D-
17	23	57.5%	F
18	22	55%	F
19	21	52.5%	F
20	20	50%	F
21	19	47.5%	F
22	18	45%	F
23	17	42.5%	F
24	16	40%	F
25	15	37.5%	F
26	14	35%	F
27	13	32.5%	F
28	12	30%	F
29	11	27.5%	F
30	10	25%	F
31	9	22.5%	F
32	8	20%	F
33	7	17.5%	F
34	6	15%	F
35	5	12.5%	F
36	4	10%	F
37	3	7.5%	F
38	2	5%	F
39	1	2.5%	F
40	0	0%	F

How to use the Test Grade Calculator

Choose “questions wrong” or “points scored”.
Enter the totals.
Read the percentage and letter grade, or use the chart to grade a whole class.

What does this tool do?

Teachers often grade by counting wrong answers. With 40 questions, each is worth 2.5%, so 6 wrong is 85%. The grading chart lists the score for every possible number of wrong answers, like a classic EZ grader.

Letter grades use a common US scale (A at 93%, A− at 90% and so on). Your school's cut-offs may differ.

Why use it?

Grading chart for the whole test.
Works with points or question counts.
Letter grade included.

Privacy

The calculation happens instantly in your browser. The numbers you enter are not sent to our servers or saved. There's no account to create and nothing to install.

Frequently asked questions

Can I use it for tests with different point values per question?

Yes — switch to “points scored” and enter the points earned and points possible.

Last reviewed October 4, 2026 by the M2Toolkit team.