Scores Out of 45 as Percentages

Every possible score on a 45-question test or assignment, converted to a percentage and letter grade. Click any row to see the full worked calculation.

Score Percentage Letter Grade Wrong
0/45 0% F 45
1/45 2.2% F 44
2/45 4.4% F 43
3/45 6.7% F 42
4/45 8.9% F 41
5/45 11.1% F 40
6/45 13.3% F 39
7/45 15.6% F 38
8/45 17.8% F 37
9/45 20% F 36
10/45 22.2% F 35
11/45 24.4% F 34
12/45 26.7% F 33
13/45 28.9% F 32
14/45 31.1% F 31
15/45 33.3% F 30
16/45 35.6% F 29
17/45 37.8% F 28
18/45 40% F 27
19/45 42.2% F 26
20/45 44.4% F 25
21/45 46.7% F 24
22/45 48.9% F 23
23/45 51.1% F 22
24/45 53.3% F 21
25/45 55.6% F 20
26/45 57.8% F 19
27/45 60% D 18
28/45 62.2% D 17
29/45 64.4% D 16
30/45 66.7% D 15
31/45 68.9% D 14
32/45 71.1% C 13
33/45 73.3% C 12
34/45 75.6% C 11
35/45 77.8% C 10
36/45 80% B 9
37/45 82.2% B 8
38/45 84.4% B 7
39/45 86.7% B 6
40/45 88.9% B 5
41/45 91.1% A 4
42/45 93.3% A 3
43/45 95.6% A 2
44/45 97.8% A 1
45/45 100% A 0

Use the Test Grade Calculator to interactively grade any 45-question test. Enter the number of questions wrong and get your score instantly, plus a printable grading-scale table.

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