Risk of Ruin Calculator
Classic gambler's-ruin probabilities for even-money betting: the chance of busting a bankroll of n units, optionally before reaching a target.
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Results
Notes
- Assumes flat even-money bets. Varying stakes or payouts changes the numbers.
- Gambling math is informational only, not betting advice. Gambling involves risk of loss; only play with money you can afford to lose, and only if you are 18+ (or of legal age where you live).
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