How to roll
Choose how many dice to roll and how many sides each has, then press Roll. The total and each individual die are shown, and your last ten rolls are listed below. Add a modifier for role-playing games — for example, 1d20 + 5.
Dice notation
Tabletop games write dice as NdS: N is the number of dice and S the number of sides. 2d6 means two six-sided dice; 1d20+3 means one twenty-sided die plus 3.
Probabilities
| Roll | Range | Average | Most likely total |
|---|---|---|---|
| 1d6 | 1–6 | 3.5 | All equal (1 in 6) |
| 2d6 | 2–12 | 7 | 7 (1 in 6) |
| 3d6 | 3–18 | 10.5 | 10 and 11 (1 in 8 each) |
| 1d20 | 1–20 | 10.5 | All equal (5% each) |
Every roll uses your browser's secure random number generator, so each face is exactly equally likely — no loaded dice.