How to roll dice online
- Choose the type of die (d6 is the ordinary six-sided die) and how many to roll.
- Press Roll, tap a die, or press the space bar.
- The dice tumble and land; the total and each die's value show underneath.
Virtual dice for any game
No dice in the house, or a classroom of 30? This digital dice roller works on any phone, tablet or whiteboard. Choose 2 dice for most board games, or up to 10 for dice games. Turn on Auto roll every to roll by itself every 1, 2, 3 or 5 seconds, which is handy for classroom number games and tabletop practice.
Special dice for special games:
- D&D dice roller: dice notation, advantage and saved attacks.
- Yahtzee dice roller: hold dice, 3 rolls and a scorecard.
- Risk dice roller: attacker against defender, with battle odds.
- Warhammer 40k dice roller: hits, wounds and saves.
- Fate dice, color dice and letter dice.
Which dice for which game
- 2 d6: most family board games.
- 5 d6: dice games where you roll five dice at once, like Yahtzee.
- 1 d20: the main roll in many tabletop role-playing games.
- d4, d8, d10, d12: damage and effect rolls in role-playing games.
- d100: percentages, from 1 to 100.
2 dice probability: the most common roll
With two six-sided dice there are 36 equally likely combinations, but they do not add up evenly. 7 is the most common roll: 6 of the 36 combinations make 7 (1+6, 2+5, 3+4, 4+3, 5+2, 6+1), a 1 in 6 chance. 2 and 12 are the rarest, with one combination each (1 in 36).
| Total | Ways to roll it | Chance |
|---|---|---|
| 2 | 1 | 2.8% |
| 3 | 2 | 5.6% |
| 4 | 3 | 8.3% |
| 5 | 4 | 11.1% |
| 6 | 5 | 13.9% |
| 7 | 6 | 16.7% |
| 8 | 5 | 13.9% |
| 9 | 4 | 11.1% |
| 10 | 3 | 8.3% |
| 11 | 2 | 5.6% |
| 12 | 1 | 2.8% |
That is why 6, 7 and 8 come up so often in board games: together they are 16 of the 36 combinations, 44.4% of all rolls.
Yahtzee odds
Five dice can land in 7,776 different ways. These are the odds of each result on a single roll, counted exactly:
| Result on one roll | Ways (of 7,776) | Chance |
|---|---|---|
| Yahtzee (five of a kind) | 6 | 0.08% (1 in 1,296) |
| Four of a kind | 150 | 1.9% |
| Full house | 300 | 3.9% |
| Large straight | 240 | 3.1% |
| Small straight (or better) | 1,200 | 15.4% |
| Three of a kind (exactly) | 1,200 | 15.4% |
In a real turn you get up to three rolls. If you keep your most common number each time and reroll the rest, the chance of a Yahtzee in one turn is about 4.5%, roughly 1 turn in 22. We worked this out exactly and checked it with 400,000 simulated turns (4.54%).
Is the dice roller fair?
Yes. Each die is rolled with your browser's cryptographic random number generator, using a method that avoids the small bias simple dice code can have, so every face has exactly the same chance. The results list keeps your last 50 rolls.
Questions
Can the dice roll automatically?
Yes. Set Auto roll every to 1, 2, 3 or 5 seconds and the dice keep rolling by themselves until you set it back to Off.
What is the most common total with two dice?
7. There are 6 ways to make 7 out of 36 combinations, a 1 in 6 chance (16.7%). 2 and 12 are the rarest, 1 in 36 each. The full table is above.
What are the odds of rolling a Yahtzee?
1 in 1,296 (0.08%) on a single roll of five dice. Over a full turn of three rolls, keeping your most common number, it is about 4.5%, or roughly 1 turn in 22.
What does d20 mean?
A die with 20 sides, numbered 1 to 20. The number after the d is the number of sides.
Can I roll different dice together?
Not in one roll yet. Roll one type, then switch and roll again; both rolls stay in the results list.