Dice Roll Distribution Widget

Expression:

Mean: —•Median: —

Less than—:—

— or more:—

Available Operations

• Basic Dice: dX or NdX - Roll a single die or multiple dice
  • Examples: d20, 2d6, 3d8
• Advantage: adv(expr) - Roll with advantage (take maximum of two rolls)
  • Examples: adv(d20), adv(2d6)
• Disadvantage: dis(expr) - Roll with disadvantage (take minimum of two rolls)
  • Examples: dis(d20), dis(2d6)
• Maximum: max(expr1, expr2, ...) - Take the maximum value across multiple expressions
  • Examples: max(d6, d8), max(2d6, 1d12)
• Minimum: min(expr1, expr2, ...) - Take the minimum value across multiple expressions
  • Examples: min(d6, d8), min(2d6, 1d12)
• Arithmetic: +, -, *, / - Combine expressions with arithmetic operations
  • Examples: 2d6 + 3, d20 - 2, d6 * 2
• Constants: Use plain numbers in expressions
  • Examples: 5, 10 + d6

NOTE

If you’d like to learn more about probability distribution convolutions, the full post is pretty neat!