Dice roller: roll dice online

Virtual dice for any game

This dice roller stands in for the die that went missing from the game box. Pick how many dice you want (1 to 20) and how many sides they have (2 to 1000), then roll. The dice shake for half a second and show their values. A 6-sided die is drawn with its pips, any other die shows a number. When you roll several dice, the total is added up for you.

It is free and needs no account. The roll happens in your browser and nothing is sent anywhere.

How to roll a die

1. Under "Quick picks", click a button: 1d6, 2d6, 3d6, 5d6, 1d4, 1d8, 1d10, 1d12, 1d20 or 1d100. The roll starts straight away.
2. For any other setup, fill in "Number of dice" and "Number of sides".
3. Click "Roll the dice", click the dice themselves, or press the space bar.
4. Read the result and, with several dice, the total. "Latest rolls" lists your last 12 rolls, for example "3d6 : 4 + 2 + 6 = 12".

Which setting for which game?

Dice notation is easy to read: in "3d6", the 3 is the number of dice and the 6 is the number of sides. So 3d6 means "three six-sided dice".

• Board games (Ludo, Snakes and Ladders, Monopoly, backgammon): 1d6 or 2d6, depending on the rules.
• Yahtzee: 5d6. All the dice are rerolled every time.
• Tabletop role-playing games: 1d20 for checks, d4 to d12 for damage, 1d100 for percentages. Modifiers (+3), "keep the highest dice" and exploding dice are not handled, so do that part in your head.
• In the classroom: roll 2d6 thirty times or so and tally the totals to introduce probability. For mental arithmetic, roll 3d6 and have pupils add the dice before they look at the total.

Two six-sided dice: why 7 comes up most often

Two dice give 6 × 6 = 36 combinations, all equally likely. The totals are not. Six combinations make 7, which is 6 chances in 36, or 1 in 6. Only one makes 2 (1+1) and only one makes 12 (6+6): 1 chance in 36.

A single six-sided die averages 3.5, because (1 + 2 + 3 + 4 + 5 + 6) ÷ 6 = 3.5.

Frequently asked questions

Is the die really fair?

Yes. Each die is drawn separately by the browser's cryptographic random generator, and every side has the same chance of coming up.

Can I roll a 20-sided or 100-sided die?

Yes, with the 1d20 and 1d100 buttons, or by typing any number of sides up to 1000.

How do I roll several dice and get the total?

Enter 2 to 20 in "Number of dice". After the roll, the "Total" line shows the sum and the history lists each die.

Is the roll history saved?

Your latest rolls and your settings are kept on your device, in the browser. They are still there when you come back to the page. The "Clear" button empties the list.