Roll a d12
Roll a fair twelve-sided die online. The barbarian's die, ready for greataxe damage, hit dice, and any draw that needs a 1 in 12.
What a d12 is for
The twelve-sided die is the barbarian’s die in Dungeons & Dragons: the greataxe deals 1d12, the lance deals 1d12 on a charge, and the barbarian class rolls a d12 for hit points every level. Each face lands one in twelve times, about 8.3 percent, with an average roll of 6.5. It is famously the least-used die in the standard set, which is exactly why greataxe players love giving it work.
Greataxe or greatsword: 1d12 versus 2d6
The classic comparison is the greataxe’s 1d12 against the greatsword’s 2d6. Both average close to seven damage (6.5 versus 7), but they feel different: 2d6 clusters around the middle and can never roll a 1, while 1d12 spreads evenly from 1 to 12, so it whiffs more often and spikes higher. Roll both here, this page for the axe and two dice on the 1-6 roller for the sword, and watch the difference play out.
Beyond the battle axe
Outside tabletop combat, a d12 is a natural pick for anything with twelve options: months of the year, hours on a clock face, or a twelve-item list you want to draw from fairly. Roll up to twenty d12 at once and the roller totals them. Every result is an independent draw from your browser’s cryptographic random source, so each face keeps its exact 1 in 12 chance on every roll. Prefer a spinning format? The months wheel gives the same twelve-way odds as a wheel.
Frequently asked questions
What are the odds of each number on a d12?
Each face from 1 to 12 has an equal one in twelve chance, about 8.3%, on every roll. The average result is 6.5.
Is 1d12 better than 2d6?
They average nearly the same (6.5 versus 7), but 2d6 clusters around the middle and never rolls a 1, while 1d12 is evenly spread, so it misses low and hits high more often.
What rolls use a d12 in D&D?
The greataxe deals 1d12 damage, the lance deals 1d12 on a mounted charge, and barbarians roll a d12 for hit points at every level.
Is this online d12 roller fair?
Yes. All twelve faces have an identical chance on every roll, drawn from your browser's cryptographic random source with rejection sampling.
More dice
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