Calculate house edge, simulate your bankroll, and analyze lottery & raffle odds — all with real probability math, no guesswork.
🎲 Game & Bet Selection
Pick a game and bet type to see your true winning probability, the house edge, and what to expect per $100 wagered.
Your Odds
House Edge
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Lower is better for you
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Win Probability
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Payout
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Expected Loss / $100
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Volatility (σ)
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Win / Loss / Push Breakdown Per Bet
This Bet vs. Other Popular Games (House Edge %)
💰 Bankroll Monte Carlo Simulator
Runs 2,000 simulated sessions to show how your bankroll actually fluctuates over a session. The fan chart shows the full range — from luckiest to unluckiest — not just a single fake line.
Progressive systems don't change the house edge — they reshape the win/loss distribution. Test each to see what actually happens.
Simulation Results
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Risk of Ruin
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Chance of Profit
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Median Rounds Played
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Median Final Bankroll
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Bankroll Paths — Fan Chart (10th → 90th Percentile)
Median outcome
25–75th pct
10–90th pct
Starting bankroll
Distribution of Final Bankrolls (2,000 Simulated Sessions)
Cumulative Risk of Ruin Over Time
⚠️ How to read this: Each simulation is one possible session outcome. The fan chart shows the full range from lucky streaks to unlucky runs — your single real session could land anywhere inside it. "Risk of ruin" is the % of sessions where you lost enough that you can no longer afford a bet. The median line shows the typical experience.
🎟️ Lottery, Raffle & Scratch Card Odds
Calculate your true odds for pick-number lotteries (Powerball, Mega Millions, 6/49, EuroMillions, etc.), raffles and door-prize drawings, or scratch cards.
Results
Your Odds of Winning
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Total Combinations
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Compared to Roulette
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Expected Value / Ticket
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Probability of Matching K Numbers
How Buying More Tickets Changes Your Odds
🧠 Responsible Gambling Risk Profile
Honestly answer these to understand your gambling habits. Your answers aren't stored or transmitted anywhere — this is a private self-assessment.
Your Profile
Low RiskModerateHigh Risk
Your current habits indicate a Low Risk profile (25/100).
Risk Dimensions — Your Profile Across 7 Factors
🏆 Casino Games Ranked by House Edge
The lower the house edge, the more value you get for every dollar bet. These are the best specific bets at each game — side bets and non-optimal plays are almost always much worse.
House Edge Comparison (lower is better for you)
Understanding house edge: If a game has a 2% house edge, on average the casino keeps $2 from every $100 you bet. In a short session, variance dominates — anyone can win or lose. Over hundreds or thousands of bets, the house edge becomes the reality. A 0.5% edge vs a 5.26% edge means your money lasts ten times longer on average.