d20 twenty-sided die d4 four-sided die d6 six-sided die 2d6 two six-sided dice d8 eight-sided die d10\ ten-sided die d12 twelve-sided die d100 percentile dice
12 3 6 8 1 3 8 6



Multiple results for 1d20 + modifier ability checks, attack rolls, saving throws...
Normal Rolls #1 #2 #3 #4 #5 #6 #7 #8
Adv./Disadv. #1 #2 #3 #4
d20 ROLL 12 2 5 15 8 9 17 16
1d20-1 11 1 4 14 7 8 16 15
1d20+0 12 2 5 15 8 9 17 16
1d20+1 13 3 6 16 9 10 18 17
1d20+2 14 4 7 17 10 11 19 18
1d20+3 15 5 8 18 11 12 20 19
1d20+4 16 6 9 19 12 13 21 20
1d20+5 17 7 10 20 13 14 22 21
1d20+6 18 8 11 21 14 15 23 22
1d20+7 19 9 12 22 15 16 24 23
1d20+8 20 10 13 23 16 17 25 24
1d20+9 21 11 14 24 17 18 26 25
1d20+10 22 12 15 25 18 19 27 26
1d20+11 23 13 16 26 19 20 28 27
1d20+12 24 14 17 27 20 21 29 28
1d20+13 25 15 18 28 21 22 30 29
1d20+14 26 16 19 29 22 23 31 30
1d20+15 27 17 20 30 23 24 32 31
1d20+16 28 18 21 31 24 25 33 32
1d20+17 29 19 22 32 25 26 34 33
1d20+18 30 20 23 33 26 27 35 34
1d20+19 31 21 24 34 27 28 36 35
1d20+20 32 22 25 35 28 29 37 36

Damage or other effects...
  d4 d6 d8 d10 d12
1d# 2 2 1 10 9
2d# 6 4 6 20 12
3d# 9 5 12 21 17
4d# 13 10 17 28 21
5d# 14 11 21 32 27
6d# 18 14 26 41 28
7d# 22 20 30 42 31
8d# 25 22 33 52 33
9d# 28 25 40 53 41
10d# 31 26 42 62 43
11d# 33 27 48 72 45
12d# 36 32 50 81 47
13d# 37 37 56 89 57
14d# 38 38 64 90 67
15d# 39 43 70 94 78
16d# 41 49 74 96 81
17d# 45 55 81 105 87
18d# 49 60 83 115 97
19d# 52 62 85 120 104
20d# 53 68 87 128 115
21d# 55 70 88 130 123
22d# 58 74 89 137 126
23d# 59 79 97 145 138
24d# 63 82 102 155 144
26d# 71 88 113 160 158
27d# 74 91 114 167 162
28d# 78 92 116 171 172
29d# 80 94 121 180 173
30d# 82 99 123 187 176