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Roulette payout calculator

Calculate roulette profit, total payout, win probability and house edge for supported bets on European and American wheels.

Enter more than 0 and up to 1,000,000,000 chips.

Total returned on a win20 chips
Stake returned
10
Net profit
10
Profit payout
1 to 1
Chance of winning
48.6486%
House edge
2.7027%
Expected loss per spin
0.2703
Winning pockets: 18 out of 37 pockets

Expected loss is a long-run average across many spins. An individual losing bet loses its full stake.

Model assumptions

Assumes a fair wheel, standard payouts and full loss on zero for outside bets. La partage, en prison and multiplier games require different rules.

Build a combination of bets

How the calculation works

Win probability equals covered pockets divided by total pockets. Winning profit equals stake multiplied by payout odds. Total return adds the original stake. Expected loss equals stake multiplied by one minus the win probability times the total-return multiplier.

The tool evaluates one bet. Overlapping combinations need a separate settlement calculation. It uses 37 pockets for European roulette and 38 for American roulette.

Compare bet coverage and payouts, wheel variants and Martingale’s growing stakes.

Sources and scope
  • Rules of Play for Table Games, Roulette. British Columbia Lottery Corporation. Double-zero standard payout table and placement. European pocket count is independently verified from native Wheel.

    Publication date: not stated. Checked 2026-11-07.

  • Roulette development source. Amenti Labs LLC. Game.swift Wheel, StrategyCatalog, App ProAccess/PurchaseStore/ChipEconomy/Engagement and PrivacyInfo. Source evidence, service behavior not independently retested.

    Publication date: 2026-11-07. Checked 2026-11-07.

  • Roulette probability derivation. Amenti Labs LLC. Fair independent pockets, fixed payouts, full outside loss on zero. Formula and all supported bets regression tested.

    Publication date: 2026-11-07. Checked 2026-11-07.

How we check a claim
Actual Roulette native development build with European and American tables, Strategy lab and Sessions
Actual native app development capture

A table to come back to

See Roulette for iPhone and iPad, with European and American tables, strategy tools and session insights. The native app is in development.

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