How the dice roller works
Pick how many dice to roll, how many sides each has, and an optional modifier, then roll. The tool shows each individual die result and the total, using your browser secure randomness so every roll is fair and unpredictable. It supports the standard polyhedral dice used in tabletop games, from d4 up to d100.
Dice notation
Tabletop games often write rolls as notation like 2d6 plus 3, meaning roll two six sided dice and add three. Here that is two dice, six sides, modifier plus three. The modifier is added once to the total, not to each die, which matches how most game systems apply bonuses.
Fair, unpredictable rolls
The roller draws from the cryptographic random source built into your browser when available, which produces high quality randomness with no detectable pattern. That makes it suitable as a stand in for physical dice when you do not have a set handy, or for rolling many dice at once.
Uses beyond games
Besides tabletop role playing and board games, a dice roller is handy for making quick decisions, running simple probability demonstrations, choosing randomly among numbered options, or teaching the difference between one die and the bell shaped distribution you get when summing several dice.
Frequently asked questions
What does 2d6 plus 3 mean? Roll two six sided dice, add them, then add three to the total.
Are the rolls random? Yes, they use your browser secure random generator, so results are fair and unpredictable.
Can I roll a d20? Yes, choose 20 sides; the roller supports d4 through d100.
Related tools: Random Number, Coin Flip, Random Picker.