Luck plays a big role in games of chance, but math explains exactly how big. This collection of games and chance calculators quantifies probability in the situations players face every day — from drawing cards to rolling dice and betting on outcomes.Poker Odds — evaluate the probability of winning a handDice Roller — simulate rolls and compute outcome oddsLottery Odds — see your true chances of hitting the jackpotBetting Odds — convert between formats and implied probabilities
Calculate jackpot odds and estimated waiting time for a lottery, or compare an advertised annuity jackpot with an estimated after-tax cash payout. Choose a lottery or enter custom pools, then set your ticket frequency or payout assumptions.
Convert American, decimal, fractional, or implied-probability odds; calculate single-bet and parlay payouts; or check a market’s bookmaker margin. Choose a tab and enter the relevant odds and stake.
Roll 1–20 virtual dice, choose a die type or enter dice notation, and add an optional modifier. See the individual faces, total, possible range, average, and recent rolls.
Spin an animated wheel to get a random Yes, No, or Maybe answer to any question. Choose the classic Yes/No wheel, add Maybe, or set a custom slice mix — and see the exact probability of each outcome.
Flip a virtual coin and get an instant heads or tails result. Choose how many coins and flips to perform at once, then track your session tally, percentages and streaks.
Enter a list of names and this random team generator splits them into fair teams instantly — choose the number of teams or people per team, balance total skill per team, and copy the result with one click.
Enter your names, choose how many winners to draw, and pick them instantly with cryptographically secure randomness. Shows ranked winners, a shuffled list, copy-ready text and a draw history.
Calculate your Texas Hold'em win, tie and lose probabilities for any hole cards, opponent and street — plus your current best hand, outs and a rule of 2-and-4 estimate.
Enter your options one per line, tweak the order and spin settings, and spin the wheel to draw a truly random winner. Repeat entries to weight them, remove winners between spins, and keep a log of the last 20 results.
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