Martingale Calculator
What a progression really costs
Martingale doubles the stake after every loss so that a single win recovers everything. It works right up until it does not: the stake ladder grows exponentially and the table limit or your bankroll ends the run.
Enter your base stake, the progression multiplier and your win chance to see exactly how much bankroll each step demands and how often the whole progression busts.
Classic Martingale doubles: 2x.
0 = no table limit. Real accounts always have one.
Bankroll needed
$1,023.00
To survive all 10 steps
Bust probability per run
0.108%
1 in 927.0
Steps your bankroll covers
9 of 10
Real bust chance 0.214%
Table limit stops you at
No limit set
Enter your casino's max bet above
The progression, drawn to scale
Each bar is one step of the doubling. The point of this chart is how fast the right-hand side leaves the bankroll behind.
covered by bankrollbeyond bankrollabove the table limitcurrent step in the run
Run the progression for real
Flat betting drifts down slowly. A martingale climbs a staircase of small wins and then gives it all back in one step — this is what that looks like round by round.
- Current stake
- $1.00
- Loss streak now
- 0
- Worst streak this run
- 6
- Deepest drawdown
- $63
Multiply the stake after every loss, reset on a win.
Classic martingale doubles: 2x.
0 = no limit. This is where real progressions die.
Stop once you are up this much. 0 = never.
Stop once you are down this much. 0 = never.
- Net result
- +$157.00
- Total wagered
- $871
- Win rate
- 52.67%
- Max drawdown
- $63
- Longest losing streak
- 6
- Peak balance
- $1,158
- Biggest single win
- $64.00
- Ended by
- Session length
1,000 simulated sessions
This is the honest test of a progression: most sessions finish slightly up, and the tail on the left pays for all of them. Compare it against flat betting with the strategy selector above.
| Step | Stake | Total risked | Chance of reaching |
|---|---|---|---|
| 1 | $1.00 | $1.00 | 100.00% |
| 2 | $2.00 | $3.00 | 50.50% |
| 3 | $4.00 | $7.00 | 25.50% |
| 4 | $8.00 | $15.00 | 12.88% |
| 5 | $16.00 | $31.00 | 6.50% |
| 6 | $32.00 | $63.00 | 3.28% |
| 7 | $64.00 | $127.00 | 1.66% |
| 8 | $128.00 | $255.00 | 0.838% |
| 9 | $256.00 | $511.00 | 0.423% |
| 10 | $512.00 | $1,023.00 | 0.214% |
Rows in red exceed your bankroll — that is where the progression stops and the accumulated losses become permanent. Struck-through rows are above the table limit, which usually bites first.
How to read the results
- Bankroll needed is the sum of every step — it grows exponentially, not linearly.
- Bust probability is the chance of losing every step in the progression during a single run.
- Expected value per round is unchanged by the progression; only the shape of the outcomes moves.
- A progression trades many small wins for occasional catastrophic losses of exactly the same total size.
Frequently asked questions
Does the Martingale system work?
It produces frequent small wins and rare very large losses that cancel them out. Expected value per round is identical to flat betting, and table limits guarantee the progression eventually fails.
How much bankroll does Martingale need?
Ten doubling steps from a 1 unit base costs 1,023 units to complete. Each extra step roughly doubles that requirement.
Is a reverse Martingale safer?
Anti-Martingale raises stakes after wins, which caps the downside at your base stake but makes big wins rarer. The expected value is again unchanged.
Related calculators
These tools are informational. They describe the mathematics of casino games; they do not predict outcomes and no calculator can overcome a house edge. Gambling involves real financial risk — 18+ only, and seek help if it stops being entertainment.