🎲 D12 Dice Roller

Roll a 12-sided die for Barbarian damage, Paladin spells and more.

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About D12 Dice Roller Dice

Roll a 12-sided die for Barbarian damage, Paladin spells and more.

Use this free online dice roller anytime — perfect for online gaming sessions, when you've lost your physical dice, or for quick decisions. Works on all devices with no download required.

Frequently Asked Questions — D12 Dice Roller

Complete guide to the D12 twelve-sided die — the Barbarian's best friend

What is a D12 die?
A D12 is a 12-sided regular dodecahedron die, one of the five Platonic solids. It has 12 pentagonal faces numbered 1-12. The D12 is often called the "Barbarian die" because it's the hit die and weapon damage die for the Barbarian class in D&D.
What class uses D12 hit dice?
The Barbarian is the only class in D&D 5e to use D12 hit dice, giving them the highest maximum hit points per level (12 + Constitution modifier). This makes Barbarians the tankiest melee fighters in the game.
What weapons deal D12 damage in D&D?
The greataxe is the primary D12 weapon in D&D 5e. It's a two-handed heavy weapon dealing 1d12 slashing damage, and when used with the Great Weapon Fighting style (reroll 1s and 2s), the average damage increases to 6.58 per hit.
What is the average of a D12 roll?
The average roll on a D12 is 6.5. With 12 equally probable outcomes (1-12), the expected value is (1+2+...+12)/12 = 78/12 = 6.5.
Why is the D12 the rarest die in D&D?
The D12 has the most limited uses in standard D&D — primarily Barbarian hit dice and greataxe damage. Many players go sessions without rolling it. This rarity has made it an in-joke: "What's the least-rolled die? The D12."
What is the probability of rolling a 12 on a D12?
The probability is 1/12 ≈ 8.33%. All 12 faces are equally likely on a fair die. Rolling the maximum (12) has the same probability as rolling any other specific number.
How is D12 used in Pathfinder?
In Pathfinder 1e and 2e, the D12 is used for greataxe damage and the Barbarian's hit die (also D12 in 1e). Pathfinder 2e gives Barbarians D12 hit dice. It's also used in some spell damage and monster abilities.
What shape is a D12?
A D12 is a regular dodecahedron, one of the five Platonic solids. It has 12 regular pentagonal faces, 30 edges, and 20 vertices. Opposite faces sum to 13 on a standard D12.
Is there a D12 in Yahtzee or Monopoly?
No, neither Yahtzee nor Monopoly uses a D12. Both games use standard D6 dice. The D12 is primarily used in tabletop RPGs. Standard board games almost universally use D6s.
What months can I roll on a D12?
Conveniently, a D12 maps perfectly to the 12 months of the year, making it ideal for random month generators, calendar-based games, and oracle tables with monthly themes.