How to use the Dice Roller
- Choose a die type and how many, or type notation like 2d20+5
- Press Roll (or Space)
- See each die, the total and your roll history
About this tool
Dice notation NdS+M means roll N dice with S sides and add M. For example, 3d6 is three six-sided dice (3–18), and 1d20+5 is a d20 attack roll with a +5 bonus. Each die is an independent, uniformly random result from crypto.getRandomValues(). The average of one die is (S+1)/2, so 2d6 averages 7, which is also the most common total.
Frequently asked questions
What does 2d6 mean?
Roll two six-sided dice and add them, for a total from 2 to 12, with 7 the most likely.
Can I roll a d100 (percentile)?
Yes. Choose d100, or type 1d100, for a number from 1 to 100.
Are virtual dice fair?
Yes. Every face has exactly equal probability, which is more than many physical dice can claim.
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