Gaming & Probability

Dice, cards, brackets and probability tools.

8 tools

Advanced Dice Roller

Roll any tabletop dice expression — 4d6kh3, 2d20+5, 1d100, exploding dice.

Card Draw Probability (Hypergeometric)

Probability of drawing N of M target cards from a deck of any size.

D&D Ability Score Roller

Roll six 4d6-keep-highest-3 ability scores with running modifiers.

Loot Table Roller

Weighted random picker for loot tables, names or any custom list.

Lottery Odds Calculator

Odds of winning a 'pick N of M' lottery, with optional bonus ball.

Random Encounter Generator

Build encounter tables by terrain and roll weighted random encounters.

Roulette Probability Reference

Payouts, true odds and house edge for European and American roulette.

Tournament Bracket Generator

Single-elimination bracket structure from any list of players.

An unhandled error has occurred. Reload ×