Dice Roller
Roll d4, d6, d8, d10, d12, d20, d100 or any custom die.
Dice Roller: the tool
Settings
Up to 50.
Added to the total. Can be negative.
Result
Choose your dice and press Roll. Every face has the same chance.
Pick the type of die, how many to roll and an optional modifier, then press Roll. It is made for board games, tabletop role-playing and any time you left the dice at home. Each die is shown, and so are the sum and the total, written the usual way, such as 2d6+3.
How it works
Every die is rolled on its own: the tool asks your browser's cryptographic random generator for a whole number from 1 to the number of sides, using a method that gives every face exactly the same probability. A six-sided die lands on each face one time in six. A twenty-sided die gives each number one chance in twenty, and a roll of a d100 covers 1 to 100 in a single draw.
The notation 2d6+3 means roll two six-sided dice, add them, then add 3. The tool shows the dice, the sum of the dice, the modifier and the total. Several dice make some totals likelier than others, even though each die is fair: with two six-sided dice there is one way to make 2 and six ways to make 7, so 7 comes up one time in six and is the most common total.
Beyond the usual set, Other lets you roll a die with any number of sides from 2 to 1000. The faces of a six-sided die are drawn as pips, and the others as numbers. The dice you see are fixed once they are rolled: changing the settings afterwards does not redraw or reroll them.
How to use it
- Choose the type of die: one of the usual seven, or Other for a number of sides of your own.
- Enter how many dice to roll, from 1 to 50, and a modifier if the game asks for one.
- Press Roll the dice. The total is shown in large type with each die below it.
- Roll again as often as you like. The last ten rolls are listed under the result.
Example
Rolling 2d6+3 four times with a fixed sequence. Each line shows the dice, their sum and the total with the modifier.
What was set
- Dice
- 2d6+3, rolled four times
What came out
- Roll 1
- 1 + 4 = 5, plus 3 = 8
- Roll 2
- 3 + 4 = 7, plus 3 = 10
- Roll 3
- 1 + 1 = 2, plus 3 = 5
- Roll 4
- 2 + 3 = 5, plus 3 = 8
Good to know
- You can roll up to 50 dice at a time, with from 2 to 1000 sides, and a modifier from -1000 to 1000.
- Rules such as rolling with advantage, dropping the lowest die or exploding dice are not built in. Roll the dice you need and apply the rule yourself.
- The list of last rolls exists only while the page is open. It is not saved or sent anywhere.
Questions people ask
Are the dice fair?
Yes. Each die is an independent draw from the browser's cryptographic random generator, and every face has exactly the same probability. A virtual die has no worn edges, no loaded weight and no bias for a sloppy throw.
How do I roll two d6, as in many board games?
Choose d6, set the number of dice to 2 and leave the modifier at 0. The total is the sum of the two dice, and 7 is the most likely result.
What does d20 or d100 mean?
The d stands for die and the number is how many sides it has. A d20 has twenty faces numbered 1 to 20, as used for many role-playing checks. A d100 gives a number from 1 to 100, which stands in for a pair of ten-sided percentile dice.
Can I roll a die with a different number of sides?
Yes. Choose Other and enter any number of sides from 2 to 1000. A two-sided die is a coin flip, and a thirty-sided die is a handy way to pick a day of the month.
Can I roll with a bonus or a penalty?
Yes. Enter the bonus as a positive number in Modifier and the penalty as a negative one. It is added to the sum, and the total shows the result.