Free Roulette Calculators
Most casino calculators exist to make an offer look good. These default to showing what a thing costs, which sometimes means talking you out of it. All of them run entirely in your browser — nothing you type is stored, logged or sent anywhere.
GETRAKEBACK. 18+.
Which one to open first
- Roulette odds calculator — pick any bet on any wheel and see the true odds, the payout you are offered, and the gap between them. Start here; everything else is downstream of this number.
- Session cost calculator — turns bet size and spins per hour into a cost per hour. This is the figure that matters for budgeting, and it is almost never the figure people have in mind.
- Bankroll survival calculator — how long a bankroll lasts, and the chance of reaching a win target before running out. Uses the gambler's-ruin formula rather than a guess.
- Strategy simulator — run Martingale and its relatives thousands of times and watch the ruin rate rather than the anecdote.
- Bonus wager calculator — before any deposit, put the offer through this. If clearing the bonus costs more than the bonus is worth, it says so.
A note on precision
Roulette maths is exact. There is no estimation, no simulation error and no house-specific fudge factor in the odds, payout and house-edge figures — they fall out of the pocket count and the paytable. The only tools here that involve sampling are the strategy simulator and, optionally, the bankroll calculator; both report how many runs they used so you can judge the noise.
18+. Roulette has a fixed house edge, so over enough spins the maths favours the operator — always. If you play for real, treat it as money spent on entertainment, set a limit before you start and stop when you reach it. Our responsible gambling page covers the warning signs and where to get free, confidential help.