Bankroll Calculator
Find out how long your casino budget will last. Enter your bankroll, bet size and game to see estimated rounds, play time and survival probability.
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Understanding Bankroll Management
Bankroll management is the practice of sizing your bets relative to your total gambling budget to maximize play time while minimizing the chance of going broke prematurely. The concept is straightforward: the smaller your bets relative to your bankroll, the more rounds you can play and the closer your actual results will track the mathematical expectation. Most experienced players recommend keeping individual bets between 0.5% and 2% of your total bankroll.
The game you choose has an enormous impact on how far your money stretches. Playing blackjack with basic strategy at a 0.5% house edge means the casino takes roughly 50 cents for every $100 you wager. Compare that to American roulette at 5.26%, where the casino keeps $5.26 per $100, and the difference in bankroll longevity becomes enormous over even a few hundred rounds. This calculator shows you those differences side by side so you can make an informed decision before sitting down.
Time is another factor that many players overlook. Slot machines process 600 or more spins per hour at normal speed, while a blackjack table deals roughly 60 hands per hour. Even though slots can have a similar house edge to some table games, the much higher speed of play means you cycle through your bankroll significantly faster in terms of clock time. Slowing down your play rate, whether by choosing table games or simply taking breaks during slots sessions, is one of the most effective bankroll management strategies available.
Frequently Asked Questions
How long will my bankroll last at the casino?
It depends on three factors: your total bankroll, your average bet size, and the house edge of the game you play. A $500 bankroll with $5 bets on a 3% house edge game will last roughly 3,333 rounds on average. Our calculator gives you exact estimates based on your inputs.
What is the best bet size for my bankroll?
A common guideline is to keep individual bets below 1-2% of your total bankroll. This gives you enough rounds to experience the game properly while minimizing the chance of going broke during a normal losing streak.
Does the house edge really matter for short sessions?
In short sessions, variance (luck) dominates and you might win or lose regardless of the house edge. However, over multiple sessions, the house edge is the single biggest factor determining how quickly your bankroll erodes. Choosing lower-edge games gives your money significantly more staying power.