Free, open-source gambling math tools. No tracking, no ads, no frameworks. just pure math.
Calculate real wagering requirements for any casino bonus. See total playthrough, number of bets, and estimated clearing time.
Compare expected losses across Blackjack, Roulette, Baccarat, Slots and more. See exactly what the house keeps.
Convert between Decimal, Fractional, American odds and Implied Probability. Instant real-time conversion.
Find out how long your casino budget will last based on bet size, game choice and house edge.
Simulate Martingale, Fibonacci and D'Alembert strategies. See why doubling your bet after every loss fails.
See what casino cashback is really worth. Factor in wagering requirements to find the true effective rate.
Can you realistically clear your bonus? Full analysis with bust probability, time estimates and game comparison.
Experience low, medium, high and extreme slot volatility. See how variance shapes your wins and losses.
All formulas and mathematical models are fully documented with references.
📖 View Formulas Reference