Dice Roller

Choose how many dice and which type, then press “Roll the dice”.

How to use it

Each die gives an equally likely number from 1 to its sides, using the browser’s cryptographic random generator.

Expected total = dice × (sides + 1) ÷ 2 + modifier

Two standard dice average 7, and 7 is also the most likely total (1 in 6).

Rolling 3d6+2 gives a total between 5 and 20, averaging 12.5.

What does d20 mean?

A twenty-sided die, common in role-playing games such as Dungeons & Dragons.

Are virtual dice fair?

Yes — every face has exactly the same probability.

What are the odds of rolling a 6?

1 in 6, about 16.7%.