d12 dice roller

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Roll a d12 online

Twelve faces, as many as the months of the year or the hours on a clock face: this twelve-sided die is ready to roll. Tap it, press Roll or hit the Space bar. Each number from 1 to 12 has a 1 in 12 chance, about 8.3%. A real d12 is a dodecahedron, a solid with twelve faces shaped like pentagons.

What a d12 is used for

Role-playing games. In Dungeons & Dragons fifth edition, a d12 rolls the damage of a greataxe and is the barbarian’s hit die.
Anything that comes in twelves. Pick a month of the year, an hour on the clock or a sign of the zodiac.
Twelve options. Number the choices and roll once.

Roll	Chance
A given number, like 12	1 in 12 (8.3%)
7 or higher	1 in 2 (50%)
10 or higher	1 in 4 (25%)
12 twice in a row	1 in 144 (0.7%)

The average roll of a d12 is 6.5. Need a different die? Tap “12 sides” to switch, or tap “one die” to roll up to 10 dice at once.

How it works

Your dice are ready
The dice for this page are already on the table, and the sentence under them says how many and how many sides. No setup needed.
Roll them
Tap the dice, press Roll or hit the Space bar. They tumble, land, and the result appears at the top.
Keep, re-roll or switch
Tap a die to keep it while the others re-roll; Release all frees them. To roll something else, tap the number of dice or sides in the sentence.

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Ready-made versions

Dice roller Roll a die Roll 2 dice Roll a d20 Roll a d4 Roll a d8 Roll a d10 Roll a d100 Roll 3 dice Roll 4 dice Roll 5 dice Roll 6 dice Roll 2d20 Roll 10 dice

The guide

Dice Probability Explained: 1, 2 and 3 Dice, d20 and MoreWhy 7 comes up most, d20 advantage and more

Questions

What shape is a d12?

A dodecahedron: twelve faces, each one a pentagon. On a fair d12, like this one, every face has the same chance of landing on top.

What is a d12 used for in D&D?

In fifth edition, it is the damage die of the greataxe and the hit die of the barbarian.

What is the average roll on a d12?

6.5, halfway between 1 and 12. Half the rolls are 7 or higher.

How do I roll 2d12 for a critical hit with a greataxe?

Tap “one die”, choose 2 dice and keep 12 sides. Press Roll and add your modifier once to the total. The result of the dice alone runs from 2 to 24 and averages 13.

Can I use a d12 to pick a month?

Yes. Number the months from January (1) to December (12) and roll: each month has the same 1 in 12 chance.

Is this dice roller free?

Yes. It is free to use, funded by advertising, with no account and no app to install.

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