Roll a D12

Roll a fair twelve-sided die for tabletop games. Add a modifier or roll several at once — all in your browser.

1d12
Press Roll to throw the dice.
Free, no sign-up Cryptographically fair Works offline

Rolling a d12

The twelve-sided die, or d12, turns up in tabletop role-playing games for larger weapon damage and other rolls where a wider spread than a d6 but less than a d20 is wanted. This roller is preset to a single d12; add a modifier for bonuses or roll several at once, with the total and breakdown shown. Each roll is cryptographically fair.

Frequently Asked Questions

How do I roll a d12?
Press Roll — the die is set to a twelve-sided d12, giving a fair result from 1 to 12. Use the modifier field to add a bonus, and raise the count to roll several. The selector goes up to twenty dice, so 2d12 or more is a single press.
Is the d12 roll fair?
Yes — the d12 roll is fair. It uses the Web Crypto API with rejection sampling so all twelve faces are equally likely, with no bias, and nothing is uploaded. Each face therefore lands on about 8.3% of rolls over the long run.
What is a d12 used for?
The d12, or twelve-sided die, turns up most often as a damage die in tabletop RPGs — greataxes and barbarian hit dice in fifth-edition Dungeons and Dragons both use it — and it doubles as a way to pick a month or an hour at random. Its flat 1-to-12 spread suits anything that needs twelve equally likely options. Because the faces are numbered rather than pipped, the result reads straight off the tray.
How does a d12 compare with rolling 2d6?
A d12 and a pair of six-sided dice both cover twelve numbers, but only the d12 is flat: every value from 1 to 12 is equally likely at about 8.3%. Two d6 total from 2 to 12 and bunch up in the middle, so 7 arrives roughly six times as often as 12. Choose the d12 when you want an even spread and 2d6 when you want a bell curve.

More randomizers

All options — Dice Roller

Open the full dice roller with every setting.

Randomizers

→

Roll a D20

A fair 20-sided die for tabletop RPGs.

Randomizers

→

Coin Flip

Flip a fair coin for heads or tails.

Randomizers

→