D20 Roller: Roll a 20-Sided Die Online
Roll a twenty-sided die for Dungeons and Dragons, other tabletop games or a quick decision. Every roll is fair and instant, and the tool tracks your history and average. Need several dice or a different type? Change them above the dice.
What is a d20?
A d20 is a twenty-sided die with the numbers 1 to 20. In Dungeons and Dragons it decides whether attacks hit, skill checks succeed and saving throws hold. A natural 20 is usually a critical success and a natural 1 a critical failure.
Advantage and disadvantage
To roll with advantage set the dice count to 2 and keep the higher number. For disadvantage keep the lower one. The roll history shows both values so you can pick the right one.
Other dice
The Type selector switches the same roller to d4, d6, d8, d10, d12 or d100 (percentile), the set used in most role-playing games.
Dice FAQ
What is the chance of rolling a 20 on a d20?
Exactly 5%, which is 1 in 20. The same is true for any single number from 1 to 20.
Is this d20 roller random?
Yes. The number is drawn with the secure random generator of your browser before the animation starts, so each side has an equal chance and past rolls have no effect.
How do I roll with advantage?
Set the Dice selector to 2 with the d20 type, roll, and take the higher of the two numbers.
Can I roll d100?
Yes. Pick d100 in the Type selector for a percentile roll from 1 to 100.
Are my rolls saved?
Your history and averages live only in your browser. Use Reset stats to clear them.
Also try the 1 dice roller, the 2 dice roller, the 3 dice roller, the d20 roller or the Yes or No wheel.