Roll Virtual Dice Online
Choose how many dice to roll (1 to 6) and their type, from a standard die to a d100, then roll: the total is calculated for you. Handy when the game's dice have gone missing, for a role-playing session, or in class.
- 1 to 6 dice at once
- From d4 to d100
- Automatic total
- Fair randomness
100% private — Everything is processed directly in your browser: your files, voice, and image are never sent to Chatzam's servers.
How to roll dice online?
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Choose your dice
Set how many dice to roll, from 1 to 6, and their type: a standard 6-sided die or role-playing dice (d4, d8, d10, d12, d20, d100).
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Roll
One click: the dice roll on screen, with or without sound, as you prefer.
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Read the result
The value of each die and the total are displayed, and the roll joins the previous ones in the history.
All your dice, always at hand
Role-playing dice
d4, d6, d8, d10, d12, d20, and d100: the full set for role-players, for Dungeons & Dragons or any other tabletop RPG.
Up to 6 dice at once
Two dice for Monopoly, five for Yahtzee, six for Farkle: roll them together, just like at the table.
Total and history
The total is calculated automatically and every roll stays in the history, handy for checking a disputed result.
Dice that are never loaded
Your browser's cryptographic random number generator gives each face exactly the same chance of coming up.
Two dice: why 7 comes up most often
With a single die, each face has a one-in-six chance. With two dice, the 36 possible combinations don't all give the same total. You can get 7 in six ways (1+6, 2+5, 3+4, 4+3, 5+2, 6+1): it's the most likely total, with 6 chances in 36, or about 17%. Next come 6 and 8 (5 chances in 36), while 2 and 12 have only 1 chance in 36, less than 3%. That's why, in Catan, a 7 brings out the robber and the 6 and 8 number tokens are printed in red. With three dice, 10 and 11 come up most often, 12.5% of the time each.
The d20 and other role-playing dice
In Dungeons & Dragons, the twenty-sided die (d20) decides almost everything: hitting an enemy, persuading a guard, picking a lock. On an attack roll, a natural 20 is a critical hit and a natural 1 an automatic miss, each with a 5% chance. The other dice are mostly used for damage, from the dagger's d4 to the greataxe's d12. The d100, or percentile die, is at the heart of games like Call of Cthulhu. The notation is simple: 3d6 means three six-sided dice, 1d20 one twenty-sided die. To create a character, many players roll 4d6 and keep the three highest.
Dice for board games and the classroom
Lost dice, an incomplete secondhand game, an improvised game night on vacation: open the page on your phone and roll, the total is added up for you. In class, projected on the board, virtual dice help practice mental math, explore probability (roll 60 dice and count the 6s: you'd expect about ten), or pick a group at random. Turn off the sound so you don't disturb anyone. To decide between two options, use “Flip a Coin” instead; to draw a name, “Spin the Wheel” or the “Random Picker”.
Frequently Asked Questions
Is the online dice roller really random?
Yes. Each die is drawn by your browser's cryptographic random number generator: every face has exactly the same probability of coming up, with no loaded dice and no clumsy throws.
How many dice can I roll, and what kinds?
From 1 to 6 dice at once: the standard 6-sided die or the role-playing dice d4, d8, d10, d12, d20, and d100. The total is calculated automatically.
What are the odds of rolling double sixes?
One chance in 36 with two dice, or about 2.8%. Rolling at least one 6 is much more common: 11 chances in 36, about 31%.
What do 1d20 or 3d6 mean?
It's role-playing game notation: the first number tells you how many dice to roll, the second how many faces they have. 3d6 means three six-sided dice, 1d20 one twenty-sided die.
Can I turn off the dice sound?
Yes, sound is optional: keep it for atmosphere around the table, and turn it off in class or at the office.