Dice Roller

Understanding Dice Notation

Dice notation is a system used to represent different dice rolls in tabletop games. The standard format is:

ndX+m

• n is the number of dice to roll
• X is the number of sides on each die
• +m is an optional modifier added to the result

For example, "3d6+2" means "roll three six-sided dice and add 2 to the result."

Common Dice Types

Different tabletop games use various types of dice:

• d4 - Four-sided die (tetrahedron)
• d6 - Standard six-sided die (cube)
• d8 - Eight-sided die (octahedron)
• d10 - Ten-sided die (pentagonal trapezohedron)
• d12 - Twelve-sided die (dodecahedron)
• d20 - Twenty-sided die (icosahedron)
• d100/d% - Percentile dice (typically rolled with two d10s)

Probability in Dice Rolls

The probability distribution of dice rolls depends on the number and type of dice. A single die has a uniform distribution (each face has an equal chance), but multiple dice create a bell curve distribution, with middle values being more likely than extreme values.