Roll any combination of dice for D&D, board games, and RPGs. Supports D4 through D100 with modifiers.
Select a die type (D4 through D100), choose how many to roll, add an optional modifier, and click Roll. The results appear individually with the total shown below. Natural 20s glow green; natural 1s glow red. All rolls are saved in the history panel.
Standard dice notation uses the format NdX+M, where N is the number of dice, X is the number of sides, and M is a modifier added to the total. For example, 2d6+3 means roll two six-sided dice and add 3 to the total. This notation is standard across tabletop RPGs like Dungeons and Dragons, Pathfinder, and many board games.
D20 (twenty-sided): The most iconic RPG die. Used for attack rolls, ability checks, and saving throws. A natural 20 is a critical hit; a natural 1 is a critical failure. D6 (six-sided): Used for damage rolls, ability scores (4d6 drop lowest), and many board games. D8, D10, D12: Weapon damage dice in D&D. A longsword does 1d8, a longbow 1d8, a greataxe 1d12. D4: Dagger damage, some spell effects. D100 (percentile): Used for random tables and some special effects. Often rolled as two D10s (one for tens, one for ones).
A single D6 has an equal 1/6 (16.7%) chance of landing on each face. When you roll multiple dice and add them, the distribution shifts toward the middle values. Two D6 added together are most likely to total 7 (probability 16.7%) and least likely to total 2 or 12 (2.8% each). This bell-curve effect is why 2d6 feels more predictable than 1d12, even though both average 7.