How to roll a d20
Tap the die or press Roll.
Add a modifier or switch on advantage if you need it.
The d20 at a glance
A d20 is an icosahedron: twenty triangular faces, each with a 5% chance. It decides attacks, checks and saving throws in many tabletop games, and works just as well as a quick random number from 1 to 20.
Frequently asked questions
What are the odds of a natural 20?
5% on a single roll, about 9.75% with advantage, and 0.25% with disadvantage.