Roulette Martingale Calculator
Analyze Martingale on roulette even-money bets (red/black, odd/even). European roulette (2.7% edge) preset — switch to American (5.26%) by adjusting win probability to 47.37%.
Parameters
Unlimited
Win Probability:48.65%
House Edge:2.70%
Single Session Analysis
Negative EVRequired Bankroll$16,383
Max Consecutive Losses13 rounds
Ruin Probability0.0089% per session
Profit Per Win$1.00
Sessions to Recover 1 Bust16,383
EV Per Session$-0.4500
Martingale Bet Sequence
| Round | Bet | Total Invested | Still Losing Prob. |
|---|---|---|---|
| 1 | $1 | $1 | 51.3514% |
| 2 | $2 | $3 | 26.3696% |
| 3 | $4 | $7 | 13.5412% |
| 4 | $8 | $15 | 6.9536% |
| 5 | $16 | $31 | 3.5707% |
| 6 | $32 | $63 | 1.8336% |
| 7 | $64 | $127 | 0.9416% |
| 8 | $128 | $255 | 0.4835% |
| 9 | $256 | $511 | 0.2483% |
| 10 | $512 | $1,023 | 0.1275% |
| 11 | $1,024 | $2,047 | 0.0655% |
| 12 | $2,048 | $4,095 | 0.0336% |
| 13 | $4,096 | $8,191 | 0.0173% |
| 14 | $8,192 | $16,383 | 0.0089% |