Calculate the optimal bankroll for your craps session based on bet type, size, and risk tolerance. Know exactly how much to bring to the table.
Bankroll = Units × Bet Size × Risk MultiplierRecommended Bankroll
$500
50 betting units
Risk of Ruin
98.5%
Expected Loss
$8.88
0.37% edge
95% Worst Case
$489
More odds = more variance = more bankroll needed
Your standard bet size
30-40 typical for line bets
Total planned playing time
How much risk can you accept?
| Bet Type | Edge | Variance | $10 Bankroll* |
|---|---|---|---|
| Pass Line Only | 1.41% | 1.0 | $500 |
| Don't Pass Only | 1.36% | 1.0 | $495 |
| Pass + 1x Odds | 0.85% | 1.5 | $612 |
| Pass + 2x Odds | 0.61% | 2.0 | $707 |
| Pass + 3-4-5x Odds | 0.37% | 2.5 | $791 |
| Pass + 10x Odds | 0.18% | 4.0 | $1000 |
| Place 6 & 8 | 1.52% | 0.9 | $466 |
*Moderate risk bankroll for $10 base bets
Monte Carlo simulation with 1,000 iterations
Your initial capital
Your expected advantage
Percentage of bankroll per bet
Total bets to simulate
A general rule is 50 betting units for moderate risk tolerance. For $10 Pass + odds, that's $500. For $25 flat bets, $1,250. More aggressive players use 30 units; conservative players prefer 75-100 units.
Yes. While odds bets reduce house edge percentage, they increase variance. Pass + 3-4-5x odds has 2.5x the variance of flat Pass bets. You need more bankroll to handle the bigger swings, even though you'll lose less per dollar wagered.
Risk of Ruin (RoR) is the probability of losing your entire bankroll before quitting. A 5% RoR means you'll go broke 1 in 20 sessions. Most recreational players target 5-10% RoR.
Your bet size should maintain proper units-to-bankroll ratio. If you add money to your bankroll, you can increase bets proportionally. The goal is keeping risk of ruin at acceptable levels regardless of bet size.
Quick-start with common scenarios
Recommended Bankroll
$500
50 betting units
Risk of Ruin
98.5%
Expected Loss
$8.88
0.37% edge
95% Worst Case
$489