Roulette odds & probability explained

Get to know how to play onlineroulette in this blog, before spinning the wheel, you must understand the rules of roulette and everything from square one! Are you ready to be a roulette pro? 

Your winnings are of course dependent on whether you play the European or American version, with the former offering better odds to the player. 

When playing roulette, one area you will have to make sure of is that you place your chips in exactly the right place on the roulette table – if you are slightly out it could make a big difference to your winnings depending on where the ball lands on the roulette wheel. 

Understanding Roulette pay-out

Roulette pay-outs odds are worked out in the form of x to 1, meaning you will win x pound for every pound you have bet.

For example, if you place a bet to win on just one number the pay-out is 35 to 1, therefore you will get £35 back, plus your original £1 stake.

The below table gives you the complete list of roulette pay-outs.



European Roulette Odds European Roulette House Edge American Roulette Odds American Roulette House Edge
Reds / Blacks (colour) 1:1 48.65% 2.70% 47.37% 5.26%
Evens / Odds* 1:1 48.65% 2.70% 47.37% 5.26%
Lows / Highs (1-18 / 19-36) 1:1 48.65% 2.70% 47.37% 5.26%
Dozens 2:1 32.43% 2.70% 31.58% 5.26%
Columns 2:1 32.43% 2.70% 31.58% 5.26%
6 Numbers (6 line) 5:1 16.22% 2.70% 15.79% 5.26%
5 Numbers (top line) 6:1 13.16% 7.89%
4 Numbers (square) 8:1 10.81% 2.70% 10.53% 5.26%
3 Numbers (street) 11:1 8.11% 2.70% 7.89% 5.26%
2 Numbers (split) 17:1 5.41% 2.70% 5.26% 5.26%
1 Number (straight) 35:1 2.70% 2.70% 2.63% 5.26%

*An exception is when the ‘La Partage’ rule applies, and that rules that if zero comes in, then customers received 50 per cent back from even chance bets, and the house edge is then 1.35%.

Pay-outs on outside bets

These tend to be the safer bets, simply because the odds of winning are much better and are often known as even money bets.

They effectively split the table in half, whether you bet in the form of red or black, even or odd, or 1-18 and 19-36.

The only exception is if you are betting on zero in European roulette and double zero in American roulette.

The possibilities of these bets winning are close to 50% on both forms of roulette, therefore the payout is 1/1. If the

Other outside bets include the first, second or third dozen numbers (1-12, 13-24 and 25-36). The chances of winning a bet on a dozen are 32.43% in European roulette and 31.58% in the American version, with the pay-out 2/1. This also applies to column bets.

Pay-outs on inside bets

These bets offer greater potentially winnings but have a lower possibility of being successful. They include bets on individual numbers or groups of numbers. The types of inside bets include:

Straights: Bets on single numbers. These have the lowest possibility, and return the highest payout 35/1.

Splits: Bets across two numbers. These have a 17-1 pay-out.

Street: Bets across three numbers, for example 4,5,6. This bet offers a payout of 11-1.

Corner: Also known as a square or a quarter bet, for example 8, 9, 11 & 12. The pay-out is 8-1.

Six Line: Bet across six numbers with a pay-out of 5-1.

How to maximise roulette odds

There are not many table games as exciting as roulette, either at a land-based casino or online but trying to make a profit can prove difficult even for the more experienced players.

Here are some tips to potentially help you along the way when playing roulette.

Betting System

It is always good to have a betting system in place that you stick to. For example, the Martingale system can all but guarantee a profit. Take a look at our top roulette strategies.

European roulette v American roulette

If you can, play the European version over American because the former has slightly better odds, mainly because there is no double 00.

Hedge your bets

A common mistake made is to start chasing and betting with larger stakes when you are on a losing run, however, it is best to make your money go the furthest and essentially stick to bets which payout even money.




2 responses to “Roulette odds & probability explained”

  1. Salut très bon application

  2. Gadisa Tamiru

    Beting games

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