What grade is 7 wrong out of 45?

7 wrong answers leaves 38 correct, which is 84.4%. That is a B on the standard A–F scale and a B on the plus/minus scale.

Can I give partial credit on a 45-question test?

Yes. On a 45-question test, turn on half points in the Quick Grade calculator and a half-credit answer counts as 1.111% instead of 2.222%. The chart on this page uses whole questions only.

45 Questions

45-Question Grading Scale

Each question on a 45-question test is worth 2.22%. On the common 90/80/70/60 scale you can miss up to 4 questions for an A, up to 9 questions for a B, up to 13 questions for a C, up to 18 questions for a D. The chart below shows the percentage and letter grade for every number of wrong answers from 0 to 45.

Custom cutoffs or another test size

Score chart for 45 questions (standard A–F)
Wrong	Correct	Percent	Grade
0	45	100.0%	A
1	44	97.8%	A
2	43	95.6%	A
3	42	93.3%	A
4	41	91.1%	A
5	40	88.9%	B
6	39	86.7%	B
7	38	84.4%	B
8	37	82.2%	B
9	36	80.0%	B
10	35	77.8%	C
11	34	75.6%	C
12	33	73.3%	C
13	32	71.1%	C
14	31	68.9%	D
15	30	66.7%	D
16	29	64.4%	D
17	28	62.2%	D
18	27	60.0%	D
19	26	57.8%	F
20	25	55.6%	F
21	24	53.3%	F
22	23	51.1%	F
23	22	48.9%	F
24	21	46.7%	F
25	20	44.4%	F
26	19	42.2%	F
27	18	40.0%	F
28	17	37.8%	F
29	16	35.6%	F
30	15	33.3%	F
31	14	31.1%	F
32	13	28.9%	F
33	12	26.7%	F
34	11	24.4%	F
35	10	22.2%	F
36	9	20.0%	F
37	8	17.8%	F
38	7	15.6%	F
39	6	13.3%	F
40	5	11.1%	F
41	4	8.9%	F
42	3	6.7%	F
43	2	4.4%	F
44	1	2.2%	F
45	0	0.0%	F

How a 45-question test is scored

Divide the number of correct answers by 45 and multiply by 100. With 45 questions worth the same amount, each one is 2.222% of the grade. With 45 questions each answer is worth only 2.22%, so the grade is steadier than on a short quiz. This size is typical for midterms and multi-section exams.

On the common 90/80/70/60 scale you can miss up to 4 questions for an A, up to 9 questions for a B, up to 13 questions for a C, up to 18 questions for a D. Anything below the D line is an F.

Quick reference for 45 questions

These scores come from the same chart you see in the tool above.

0 wrong answers (45 correct) = 100.0%, grade A
1 wrong answer (44 correct) = 97.8%, grade A
2 wrong answers (43 correct) = 95.6%, grade A
3 wrong answers (42 correct) = 93.3%, grade A
5 wrong answers (40 correct) = 88.9%, grade B
9 wrong answers (36 correct) = 80.0%, grade B
14 wrong answers (31 correct) = 68.9%, grade D
18 wrong answers (27 correct) = 60.0%, grade D

Rounding and partial credit on 45 questions

Because 45 does not divide 100 evenly, scores are rounded. For example, 5 wrong is 88.8889% exactly and shows as 88.9% rounded to one decimal. The letter is chosen from the rounded value that is displayed.

Half points are possible too: one half-credit answer is worth 1.111%.

Worked example: 5 wrong on a 45-question test

A student misses 5 of 45 questions.

Correct answers: 40 of 45
Percentage: 88.9%
Standard A–F: B
Plus/minus: B+

(45 − 5) ÷ 45 × 100 = 88.89%, so the grade is 88.9% (B).

Grading & Weighting FAQs

Grade Calculator & Scoring FAQs

Clear, mathematically verified answers to common questions about weighted grade averages, grading scales, and final exam target scores.

Each question is worth 100 ÷ 45 = 2.222% when every question has the same weight. Missing one question leaves 97.78%, and each further miss lowers the score by another 2.222 points.

On a 45-question test with the common 90/80/70/60 scale you can miss up to 4 questions for an A. For the other letters you can miss up to 9 questions for a B, up to 13 questions for a C, up to 18 questions for a D. Your teacher’s scale may use different cutoffs, so check the syllabus.

Interactive Tools Available

Test a hypothetical score with our Target Grade Simulator above!