Roulette Bankroll Calculator
Estimate the capital consumed by common staking progressions before you test them.
This is a planning estimate, not a safe bankroll or a prediction of profit.
A bankroll is a limit, not protection
This tool totals the stakes in a chosen progression and optionally adds a planning buffer. The result tells you how much capital the sequence can consume. It does not describe a bankroll that is safe from loss.
How the sequences differ
Flat betting keeps each stake equal. D’Alembert grows in linear steps. Fibonacci follows the familiar 1, 1, 2, 3, 5 sequence. Martingale grows exponentially. Paroli doubles following wins and typically resets after a short positive run. Because each system needs different win/loss rules, the figure is best used as a transparent exposure estimate.
Use a session limit
Decide the maximum acceptable loss before beginning, keep gambling funds separate from essential money and never increase that boundary to recover a previous result. If the numbers produced by a progression feel uncomfortable, the correct response is to reduce or avoid the stake—not to assume the losing sequence is unlikely.