Roulette Payout Calculator

'To one' versus 'for one'

Roulette payouts are quoted to one, which means your stake is returned on top. A 35:1 straight-up win on $10 returns $360: your $10 back plus $350 profit. Some game-show variants quote multipliers for one instead — a 500x Lightning hit returns 500 times the stake in total, stake included. Read the paytable wording.

Covering multiple numbers

Spreading chips across several inside bets feels safer and costs more. Put six chips on six separate numbers and you win 35 units but lose 5 on every winning spin, netting 30 — against a true chance of 6/37. The house edge is unchanged at 2.70%; you have simply bought lower variance at exactly fair price.

A worked example

Four $10 chips on four separate corners. Each corner pays 8 to 1, so a win returns $90 on that chip while the other three lose: $90 back against $40 staked, a $50 profit.

The chance that at least one of the four corners lands is 16/37 = 43.2%. On the other 56.8% of spins you lose the full $40. Over 37 spins the arithmetic lands, as always, on −2.70% of everything staked.

Reading the paytable wording

“Pays 35 to 1” means stake returned plus 35 times it — a $10 bet returns $360 in total.

“Pays 35 for 1” means 35 times the stake in total, stake included — $350 on a $10 bet. The difference is one full unit and it matters most on the high multipliers used by game-show variants, where “500x” almost always means for one.

Privacy and how this tool runs

Everything on this page is computed in your browser. Nothing you type is transmitted, logged or stored anywhere, there is no account, and the page works offline once loaded. The source is plain JavaScript in the page itself — you are welcome to read it.

All our figures use published paytables and pocket counts. If you find a number here you believe is wrong, tell us: we correct in place and change the date at the top of the page.