Scores Out of 55 as Percentages

Every possible score on a 55-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
0/55 0% F 55
1/55 1.8% F 54
2/55 3.6% F 53
3/55 5.5% F 52
4/55 7.3% F 51
5/55 9.1% F 50
6/55 10.9% F 49
7/55 12.7% F 48
8/55 14.5% F 47
9/55 16.4% F 46
10/55 18.2% F 45
11/55 20% F 44
12/55 21.8% F 43
13/55 23.6% F 42
14/55 25.5% F 41
15/55 27.3% F 40
16/55 29.1% F 39
17/55 30.9% F 38
18/55 32.7% F 37
19/55 34.5% F 36
20/55 36.4% F 35
21/55 38.2% F 34
22/55 40% F 33
23/55 41.8% F 32
24/55 43.6% F 31
25/55 45.5% F 30
26/55 47.3% F 29
27/55 49.1% F 28
28/55 50.9% F 27
29/55 52.7% F 26
30/55 54.5% F 25
31/55 56.4% F 24
32/55 58.2% F 23
33/55 60% D 22
34/55 61.8% D 21
35/55 63.6% D 20
36/55 65.5% D 19
37/55 67.3% D 18
38/55 69.1% D 17
39/55 70.9% C 16
40/55 72.7% C 15
41/55 74.5% C 14
42/55 76.4% C 13
43/55 78.2% C 12
44/55 80% B 11
45/55 81.8% B 10
46/55 83.6% B 9
47/55 85.5% B 8
48/55 87.3% B 7
49/55 89.1% B 6
50/55 90.9% A 5
51/55 92.7% A 4
52/55 94.5% A 3
53/55 96.4% A 2
54/55 98.2% A 1
55/55 100% A 0

Use the Test Grade Calculator to interactively grade any 55-question test. Enter the number of questions wrong and get your score instantly, plus a printable grading-scale table.

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