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Roll a Dice
Roll up to 10 dice at once — standard six-sided dice or d4, d8, d10, d12, d20 and d100 for tabletop role-playing games. The total is added up for you.
Roll a Dice
History
How to roll
- Choose how many dice and how many sides.
- Press Roll. Six-sided dice show pips; other dice show the number.
- Your last 50 rolls are kept in the history list.
Is it really random?
Yes. Results come from crypto.getRandomValues(), the cryptographically secure generator your browser uses for encryption keys, with rejection sampling so every outcome is exactly equally likely (simple “modulo” tricks slightly favour some numbers). Nothing is decided in advance or sent to a server, so nobody — including us — can predict or influence a result.
Dice notation (for role-playing games)
Games write dice as NdS: N dice with S sides. 2d6 means roll two six-sided dice and add them; 1d20 is one twenty-sided die. Pick the matching number and sides above.
Two six-sided dice: chance of each total
| Total | Ways | Probability |
|---|---|---|
| 2 | 1 | 2.78% |
| 3 | 2 | 5.56% |
| 4 | 3 | 8.33% |
| 5 | 4 | 11.11% |
| 6 | 5 | 13.89% |
| 7 | 6 | 16.67% |
| 8 | 5 | 13.89% |
| 9 | 4 | 11.11% |
| 10 | 3 | 8.33% |
| 11 | 2 | 5.56% |
| 12 | 1 | 2.78% |
Frequently asked questions
What is the most likely total with two dice?
Seven — there are 6 ways out of 36 (about 16.7%). 2 and 12 are the rarest at 1 in 36 each.
Are virtual dice fair?
These are perfectly fair: each face is equally likely. Physical dice can be slightly biased by manufacturing.
Can I roll a d20 for D&D?
Yes — set Sides to d20. Roll 2 for advantage or disadvantage and take the higher or lower.