RPG Damage Dice to Expected Value Converter

About RPG Dice Notation

Dice notation like "2d6+3" means "roll two 6-sided dice and add 3 to the total".

  • d = die/dice
  • number before d = how many dice to roll
  • number after d = number of sides on each die
  • +/-X = optional modifier added or subtracted from the roll

The expected value is calculated as:

E = (numDice * (1 + sides) / 2) + modifier

This tool helps you compare, balance, or analyze RPG damage expressions quickly and accurately.

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