Dice Roller
Choose a die and how many to roll, then press Roll. You see each die on its own and the total, which is handy for board games, tabletop role-playing and quick decisions. Every face has the same chance on every roll.
Last updated November 2, 2026
1 to 100
Result
2d6: the total is between 2 and 12, and averages 7.
Press Roll to throw the dice. Each roll is new and is not stored.
How the dice are rolled
each die = a random whole number from 1 to sides
total = sum of all dice
Each die is its own draw from your browser’s secure random generator, turned into a number from 1 to the number of sides. The draw is made fair by discarding the few values that would favor low faces, so a d20 shows every face from 1 to 20 with the same chance. Dice never affect each other and earlier rolls never influence later ones.
Dice are written as a count followed by d and the number of sides. 2d6 means two six-sided dice added together, and 1d20 is a single twenty-sided die. The lowest total is the number of dice, because every die shows at least 1, and the highest is the number of dice times the sides. The average of one die is (sides + 1) ÷ 2, so 2d6 averages 7.
See how we calculate for the formulas, sources and review schedule behind every calculator.
Also useful alongside this calculator: Average Calculator, Percentage Calculator and Ratio Calculator.
The six dice
The d6 is the familiar cube from board games. The d4, d8, d10, d12 and d20 are common in tabletop role-playing games, where a d20 decides most checks and the others set damage. The d10 here has faces 1 to 10, so it never shows 0.
More sides means a wider spread and a higher average: a d4 averages 2.5, a d6 3.5, a d8 4.5, a d10 5.5, a d12 6.5 and a d20 10.5. A single die is flat, so each face is equally likely. A rolled 1 and a rolled 20 on a d20 are each a 5% chance.
Why totals of several dice cluster in the middle
With two or more dice the totals are no longer equally likely. Only one pair of faces makes 2 on 2d6, while six pairs make 7, so 7 comes up six times as often as 2 or 12. The more dice you add, the more the totals bunch around the average and the rarer the extremes become.
That is why 3d6 is common for random ability scores: totals run from 3 to 18 but most land between 8 and 13. Rolling 1d20 is the opposite, because every result is equally likely and extremes are not rare at all.
Is a virtual die fair?
A physical die can be slightly uneven because of its shape, wear or how it is thrown. This roller has no such bias, and its result does not depend on how you press the button. It is a convenient fair roll, not a certified one, so use real dice where a tournament or casino requires them.
Nothing is stored or sent. A shared link carries only your die type and count, so the person who opens it rolls their own dice.
How to use the Dice Roller
- Pick the type of die: d4, d6, d8, d10, d12 or d20.
- Enter how many dice to roll, from 1 to 100.
- Press Roll. Each die is shown on its own, with the total above.
- Press Roll again for a new throw, or use Copy, Print and Share.
Worked example
Rolling 2d6 gives two dice, for example 4 and 3, so the total is 7. The lowest possible total is 2 and the highest is 12, and the average is 7. Of the 36 equally likely pairs, 6 add up to 7, so a total of 7 comes up 6 times in 36, or about 16.7% of rolls.
| Total | Ways to make it | Chance |
|---|---|---|
| 2 or 12 | 1 | 2.8% |
| 3 or 11 | 2 | 5.6% |
| 4 or 10 | 3 | 8.3% |
| 5 or 9 | 4 | 11.1% |
| 6 or 8 | 5 | 13.9% |
| 7 | 6 | 16.7% |
Frequently asked questions
How many dice can I roll at once?
Up to 100 dice of one type. Every die is shown separately and the total is added for you.
What is the chance of rolling a 20 on a d20?
It is 1 in 20, or 5%, on each roll. Rolling two d20 gives at least one 20 about 9.75% of the time.
What does 2d6 or 3d8 mean?
The first number is how many dice you roll and the number after d is how many sides each has. 3d8 is three eight-sided dice added together.
Are the rolls really random?
They come from your browser’s secure random generator and each die is independent. Past rolls do not make a number more or less likely next time.
Is anything stored?
No. Rolls happen in your browser and are never saved or uploaded, and a shared link holds only your settings.