How do I roll two dice at once?

Set the range to 1-6 and the count to 2, then add the results - or roll once with a 2-12 mindset for quick board game moves. Rolling two separate 1-6 dice keeps the true 2d6 probability curve.

Can I roll a D20 for Dungeons & Dragons?

Yes. Set the range to 1-20 for ability checks and attack rolls, or 1-100 for percentile rolls in systems that use a d100.

Are virtual dice as fair as physical dice?

Yes - often fairer. The roller gives every face an exactly equal chance, while worn or cheaply made physical dice can carry a small bias.

How can I use the dice roller in a maths lesson?

Roll repeatedly and tally the results to demonstrate probability distributions and the law of large numbers - 2d6 totals produce the classic bell-shaped curve.

Does the dice roller work on phones and whiteboards?

Yes. It runs in any browser, so you can roll on a phone at the game table or project it on a classroom whiteboard.

Dice Roller

Roll virtual dice online - 1d6, 2d6, 1d20, or any custom range. A free dice roller for board games, tabletop RPGs, and classroom probability lessons.

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Dice Roller Guide

A dice roller is a simple random number draw with a fixed range. Use it for board games, classroom probability lessons, and tabletop game decisions.

Dice Roller - Tips & Best Practices

Use 1 to 6 for a standard die.
Use 1 to 20 for tabletop role-playing checks.
Roll multiple numbers when you need several dice.

Using the Dice Roller in Games and Classrooms

The dice roller simulates any standard die by generating a random number within a range. For a six-sided die, use 1 to 6. For a twelve-sided die in tabletop games, use 1 to 12. In classrooms, dice rolls are useful for probability demonstrations, math games, and randomized activity selection. Display the result on a projector so the whole class sees the same roll at once.

Chance games

Common Dice Combinations

1d6: standard die for board games, math activities, and movement games.
2d6: craps, Monopoly, Settlers of Catan, and probability distribution lessons.
1d20: Dungeons & Dragons ability checks and attack rolls.
1d10 or 1d100: percentile systems in tabletop RPGs and random percentage picks.
Custom range: set any min/max for non-standard randomization in classroom games.

Dice Roller vs. Other Random Tools

Use the dice roller when the result maps to a small fixed range. Use the random number generator for larger or fractional ranges, the spinner wheel for named options, or the coin flip for binary decisions. For classroom probability units, run the dice roller many times and record results to demonstrate the law of large numbers.

Random number generators Chance games Coin flip

Dice Probability Basics for the Classroom

A single six-sided die is the simplest uniform distribution there is: every face has exactly a 1-in-6 chance, roughly 16.7 percent, on every roll. That changes the moment you add a second die. With 2d6 there are 36 equally likely combinations but only 11 possible totals, so the results cluster: a 7 can be made six different ways and appears about 16.7 percent of the time, while a 2 or a 12 has just one combination each and shows up under 3 percent of the time. This is why experienced board game players build strategies around 6, 7, and 8. The dice roller makes this easy to demonstrate live - roll 2d6 fifty times, tally each total with a tally counter, and the bell-shaped curve appears on the board in front of the class. It is also a natural way to introduce the gambler's fallacy: after three sixes in a row, ask students whether a fourth six is now less likely, then show with repeated rolls that the die has no memory and the odds never move.

Tally counters Classroom timers

Virtual Dice for Tabletop RPG Sessions

Tabletop role-playing games lean on the full polyhedral family - d4, d6, d8, d10, d12, d20, and percentile d100 - and the dice roller covers all of them by changing the range. Set 1-20 for D&D ability checks, saving throws, and attack rolls; 1-8 or 1-12 for weapon damage; and 1-100 for loot tables and wild magic surges. Rolling on screen is especially useful for online sessions where the group is on a video call: the game master can share the browser tab so every player sees the same result the moment it lands, removing any doubt about hidden rolls. For damage rolls that use multiple dice, set the count to the number of dice and add the results. Some tables also keep a phone open on the roller as a backup for the inevitable moment a physical d20 rolls under the sofa mid-encounter.

Roll a dice game

Frequently Asked Questions

How do I roll two dice at once?
Set the range to 1-6 and the count to 2, then add the results - or roll once with a 2-12 mindset for quick board game moves. Rolling two separate 1-6 dice keeps the true 2d6 probability curve.
Can I roll a D20 for Dungeons & Dragons?
Yes. Set the range to 1-20 for ability checks and attack rolls, or 1-100 for percentile rolls in systems that use a d100.
Are virtual dice as fair as physical dice?
Yes - often fairer. The roller gives every face an exactly equal chance, while worn or cheaply made physical dice can carry a small bias.
How can I use the dice roller in a maths lesson?
Roll repeatedly and tally the results to demonstrate probability distributions and the law of large numbers - 2d6 totals produce the classic bell-shaped curve.
Does the dice roller work on phones and whiteboards?
Yes. It runs in any browser, so you can roll on a phone at the game table or project it on a classroom whiteboard.

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