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Dice Roller

Roll one or more dice with a single tap, from d4 to d100, plus a backgammon mode.

Total—

2d6

Tap a die to hold it; held dice are not rolled again.

Type of die
From 1 to 10
Added to the total, e.g. +2

Recent rolls

No rolls yet. Your rolls will appear here.

Dice are rolled in your browser with its cryptographic random number generator and never sent anywhere. History is saved only on this device.

How to use the dice roller

  1. Pick the type of die: d6 for regular dice, or d4, d8, d10, d12, d20 and the percentile d100 for tabletop role-playing games.
  2. Set the number of dice from 1 to 10 with the − and + buttons. Optionally add a modifier that is added to the total (for example +2).
  3. Press Roll the dice. On a computer the Space key rolls too. The total and every single die appear right away.
  4. To keep some dice and reroll the rest, tap the dice you want to hold. Playing backgammon? Switch to the Backgammon tab.

How the online dice roller works

Dice Roller is there when you have no dice at hand or they rolled under the sofa. Roll one or many dice with a single tap for board games, backgammon, classroom activities, quick decisions or tabletop role-playing games. The regular six-sided die tumbles as a real 3D cube, with the same pip layout as a physical die and opposite faces that add up to 7.

Are the dice fair?

Yes. Every result comes from your browser’s cryptographic random number generator (crypto.getRandomValues), the same source used for encryption. Rejection sampling makes each face of a six-sided die exactly 1/6 likely, with no number favoured. The result is fixed the moment you press the button; the rolling is only an animation. Earlier rolls do not affect later ones: three sixes in a row do not change the chance of a six on the next roll.

What do d4, d6, d8, d10, d12, d20 and d100 mean?

The letter “d” stands for die and the number after it is the number of sides: a d20 has twenty sides and gives a result from 1 to 20. The number in front says how many dice are rolled, so 3d6 means three six-sided dice. A modifier such as +2 is added to the total. The tool shows this notation under the dice, together with the lowest and highest possible total and the average. The d100 is the percentile die and gives 1 to 100. On a d20, a natural 20 turns green and a natural 1 turns red.

Holding dice

When you roll several dice, tap one to hold it; a lock badge appears. On the next roll only the other dice move. This is perfect for games where you keep part of a roll and reroll the rest. Tap the die again to release it.

Backgammon dice

The Backgammon tab rolls two dice together and shows the total pips to move. When you roll doubles, such as 4–4, the tool highlights it and reminds you that doubles are played four times, with the total pip count. The Who starts? button makes the opening roll: each player rolls one die, the higher die goes first and plays both numbers, and ties are rerolled automatically. A counter keeps track of rolls and doubles during the game.

Privacy

Everything happens on your own device. Rolls are never sent to a server, and your settings and recent rolls are stored only in this browser. To pick numbers in a custom range or run a giveaway, use the random number generator.

Frequently asked questions

Is this online dice roller fair?

Yes. Each die is rolled with your browser’s cryptographic random number generator and rejection sampling, so every face of a six-sided die has exactly a 1/6 chance. The result is decided when you press the button; the rolling animation is only visual.

How many dice can I roll at once?

You can roll from 1 to 10 dice at a time. All dice are of the same type, which can be a d4, d6, d8, d10, d12, d20 or d100. The tool shows the total and the value of each die.

How many times do you move on doubles in backgammon?

When you roll doubles, such as 5–5, you play the number four times instead of twice, so 5–5 means 20 pips in total. The Backgammon tab highlights doubles and shows the pip count.

Who goes first in backgammon?

At the start, each player rolls one die. The higher roll goes first and plays both numbers as the first move. If the dice are equal, both players roll again. The Who starts? button in the Backgammon tab does this in one tap.

What is the most common sum of two dice?

Seven is the most common sum: it comes up in 6 of the 36 possible rolls, about 16.7% of the time. Two and twelve are the rarest, each with a 1 in 36 chance. The table on the side lists every sum.