Free gambling tools
Clear calculators for casino bonuses, sports odds, bankroll risk, and crypto deposits. No account. No fluff.
Casino math
Bonus Wagering Calculator
Estimate playthrough needed for casino and sportsbook bonuses.
Open tool → CasinoBonus True-Cost Estimator
Combine wagering with house edge to estimate expected bonus cost.
Open tool → CasinoHouse Edge / RTP Lookup
Compare typical house edge and RTP across popular games.
Open tool →Sports betting
Odds Converter
Convert American, decimal, and fractional odds with implied probability.
Open tool → SportsImplied Probability Calculator
Turn odds into win probability and reverse probability into fair odds.
Open tool → SportsExpected Value (EV) Calculator
Check if a sports bet is +EV using your win probability and the odds.
Open tool → SportsKelly Criterion Calculator
Size a stake from edge, odds, and bankroll (full and fractional Kelly).
Open tool → SportsParlay / Accumulator Calculator
Combine legs into total odds, stake return, and implied probability.
Open tool → SportsVig / Bookmaker Margin Calculator
Measure overround on a two-way market and see no-vig fair odds.
Open tool → SportsEach-Way Calculator
Estimate win and place returns for UK/IRE each-way bets.
Open tool →