Roll 2d6 — Two Dice Roller
Roll two six-sided dice at once, with optional modifiers. The classic roll behind Monopoly, Catan, craps, and 2d6 RPG systems.
About Rolling 2d6
Rolling two six-sided dice and adding them together is the most common dice mechanic in gaming. Unlike a single die, 2d6 does not produce a flat distribution: there are 36 possible combinations, and middle totals come up far more often than the extremes.
A 7 is the most likely total (1 roll in 6), because six different combinations produce it. Snake eyes (2) and boxcars (12) each appear only once in 36 rolls. This bell-shaped curve is why 2d6 games feel less swingy than d20 games.
What Uses 2d6?
- Board games: Monopoly movement, Catan resource production, and backgammon all run on 2d6.
- Craps: The entire casino game is built on the 2d6 distribution — 7 on the come-out roll wins.
- D&D greatsword: The greatsword and greataxe debate: 2d6 averages 7, more consistent than 1d12’s 6.5.
- PbtA RPGs: Powered by the Apocalypse games (Apocalypse World, Dungeon World, Monster of the Week) roll 2d6 + stat, with 7-9 a partial success and 10+ a full success.
- Traveller: The classic sci-fi RPG resolves nearly everything with 2d6 against a target of 8+.
Roll History
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2d6 Probability Chart
Every 2d6 total and its exact probability (out of 36 combinations):
| Total | Chance | Total | Chance |
|---|---|---|---|
| 2 | 2.78% | 8 | 13.89% |
| 3 | 5.56% | 9 | 11.11% |
| 4 | 8.33% | 10 | 8.33% |
| 5 | 11.11% | 11 | 5.56% |
| 6 | 13.89% | 12 | 2.78% |
| 7 | 16.67% | — | — |
The average 2d6 roll is exactly 7. You will roll 7 or higher 58.3% of the time, and doubles come up 1 roll in 6 (16.67%).
D6 Roller FAQ
What is the most common 2d6 roll?
Seven. Six of the 36 possible combinations total 7 (1+6, 2+5, 3+4, 4+3, 5+2, 6+1), giving it a 16.67% chance — the peak of the 2d6 bell curve.
What are the odds of rolling doubles on 2d6?
One in six (16.67%). There are six doubles (1-1 through 6-6) among the 36 equally likely combinations. Any specific double, like snake eyes, is 1 in 36 (2.78%).
Is 2d6 better than 1d12 for damage?
On average, yes: 2d6 averages 7 versus 6.5 for a d12, and it is more consistent — two-thirds of 2d6 rolls land between 5 and 9. The d12 gives you better odds of hitting the maximum (8.33% for a 12 versus 2.78% on 2d6).
What does 7-9 mean in Powered by the Apocalypse games?
PbtA games read 2d6 + stat as three bands: 6 or less is a miss, 7-9 is a partial success with a complication, and 10+ is a full success. With a +1 stat you hit 7+ about 72% of the time.