Scores Out of 39 as Percentages

Every possible score on a 39-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
0/39 0% F 39
1/39 2.6% F 38
2/39 5.1% F 37
3/39 7.7% F 36
4/39 10.3% F 35
5/39 12.8% F 34
6/39 15.4% F 33
7/39 17.9% F 32
8/39 20.5% F 31
9/39 23.1% F 30
10/39 25.6% F 29
11/39 28.2% F 28
12/39 30.8% F 27
13/39 33.3% F 26
14/39 35.9% F 25
15/39 38.5% F 24
16/39 41% F 23
17/39 43.6% F 22
18/39 46.2% F 21
19/39 48.7% F 20
20/39 51.3% F 19
21/39 53.8% F 18
22/39 56.4% F 17
23/39 59% F 16
24/39 61.5% D 15
25/39 64.1% D 14
26/39 66.7% D 13
27/39 69.2% D 12
28/39 71.8% C 11
29/39 74.4% C 10
30/39 76.9% C 9
31/39 79.5% C 8
32/39 82.1% B 7
33/39 84.6% B 6
34/39 87.2% B 5
35/39 89.7% B 4
36/39 92.3% A 3
37/39 94.9% A 2
38/39 97.4% A 1
39/39 100% A 0

Use the Test Grade Calculator to interactively grade any 39-question test. Enter the number of questions wrong and get your score instantly, plus a printable grading-scale table.

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