Roll a d12
A twelve-sided dice roller for tabletop games and picking a number from 1 to 12.
Tap roll
How to use the roll a d12
- Tap Roll or press the space bar to roll one d12.
- To add a bonus or roll several, type it in the box, for example 1d12+4.
- Each die and the total are shown, with your recent rolls underneath.
What is a d12 used for?
In Dungeons & Dragons (5th edition) the d12 is the biggest damage die: the greataxe and lance deal 1d12, and the barbarian is the only class with a d12 hit die. Outside role-playing games, a d12 is a quick way to pick a month or an hour on the clock.
d12 odds and averages
Each number from 1 to 12 has a chance of 1 in 12 (about 8.3%), and the average roll is 6.5. Two d12s (2d12) range from 2 to 24 and average 13.
The shape of a d12
A d12 is a dodecahedron, the only common gaming die with five-sided (pentagon) faces.
flipj uses your browser's built-in cryptographic random number generator (crypto.getRandomValues), the same source browsers use for encryption keys. We also avoid "modulo bias", a subtle flaw where some results come up slightly more often than others. Every result is generated on your device, so nothing you enter is sent to us.
Questions
What is the average roll on a d12?
6.5. Each number from 1 to 12 is equally likely.
Which class uses a d12 hit die?
The barbarian, in Dungeons & Dragons 5th edition.