Dice Roller

What is this Dice Roller?

A Dice Roller that feels like the real thing. The dice fall onto a felt table, bounce off its rim and each other, and the number on top is the roll: nothing is decided before they land. Tap Roll, press the space bar, or drag your finger across the table and let go to throw them yourself, as hard as you like. Pick any mix of dice, from a single d6 to a handful of d4, d8, d10, d12, d20 and d100, hold the dice you want to keep and throw the rest again, and see how likely your total was.

The 3D Dice Roller: five white dice landed on green felt with their total, beside the dice picker and each die of the roll

What you can do

• Real 3D physics: the dice tumble, collide and settle, with the sound of dice on felt. A die that lands leaning on another gets a little knock, as on a real table.
• Throw by hand: drag across the table and release. The direction and speed of your flick become the throw.
• Hold and reroll: tap dice to keep them and throw only the rest, for Yahtzee, Farkle and other press-your-luck games.
• Every common die: d4, d6 with pips, d8, d10, d12, d20 and d100 (two d10s, tens and units), plus any size you type, like d3 or d30.
• The odds: a chart of every possible total, with yours marked and how rare it is.
• Roll together: open a table and send the link. Everyone sees every throw land the same way, live, in the roller’s dice.
• Dice sets in ivory, obsidian, ruby, sapphire, emerald, gold, wood or your own colours, on green, navy, crimson, purple or charcoal felt.

How to use the Dice Roller

1. Tap the dice you want: each tap adds one; the minus takes one away. Or tap a preset like 2d6 or 5d6.
2. Press Roll, hit the space bar, or drag across the table to throw.
3. Read the total at the top. To keep some dice, tap them and press “Reroll the rest”.

Are the dice fair?

Yes. Each throw starts from random positions, spins and speeds from your browser’s cryptographic random numbers, and then physics alone decides how the dice land; the result is read from the face that ends up on top. We threw each kind of die hundreds of times in testing and every face came up about equally often. Every die is the right shape, too: a d20 is an icosahedron with opposite faces adding up to 21, a d10 a pentagonal trapezohedron, as on a real table.

Frequently asked questions

What are the odds of rolling a 7 with two dice?

One in six (16.7%): 6 of the 36 ways two dice can land add up to 7, more than any other total. A 2 or a 12 comes up once in 36 rolls (2.8%). Pick 2d6 and the chart shows every total’s chance.

Can I roll a d100?

Yes. Like a real percentile roll it throws two d10s: one marked 00 to 90 for the tens and one 0 to 9 for the units. 00 and 0 together make 100.

How do I roll dice with friends online?

Type your name under “Roll together”, open a table and copy the invite link. Friends who open it join your table; each throw, by anyone, plays out on every screen the same way. The browsers connect to each other directly, with no account.

Playing Dungeons & Dragons? The D&D Dice Roller adds full dice notation, advantage and ability scores, and Roll a D20 is one tap for a d20 with your modifier. For a party game, try the Imposter Game.