Roll D20 Online
Roll a twenty-sided die instantly with realistic 3D physics. The D20 is the most iconic die in tabletop gaming — used for attack rolls, saving throws, ability checks, and more in Dungeons & Dragons and other RPGs.
What is a D20?
A D20 (twenty-sided die) is an icosahedron-shaped die numbered 1 through 20. It is the most commonly rolled die in Dungeons & Dragons 5th Edition, used for attack rolls, ability checks, and saving throws. Rolling a natural 20 is a critical hit, while a natural 1 is a critical failure.
When to Roll a D20
In D&D and Pathfinder, you roll a D20 whenever your character attempts something with a chance of failure: attacking an enemy, picking a lock, persuading an NPC, dodging a fireball, or resisting a spell. The DM sets a Difficulty Class (DC), and your D20 roll plus modifiers determines success or failure.
Frequently Asked Questions
What are the odds of rolling a natural 20?
Each face of a D20 has an equal 5% chance (1 in 20) of landing face up. Rolling a natural 20 — often called a "crit" — has the same probability as any other number.
What is advantage and disadvantage in D&D?
With advantage, you roll two D20s and take the higher result. With disadvantage, you roll two D20s and take the lower. This replaces most numerical bonuses and penalties in D&D 5e.
Can I use this D20 roller for D&D?
Absolutely. This roller uses true random numbers and realistic 3D physics. It works great for D&D, Pathfinder, Call of Cthulhu, and any tabletop RPG that uses a D20.