A Detailed Guide to Understanding Roulette Odds

Introduction to Roulette and Roulette Odds

Roulette is a popular casino table game characterized by its cloth covered betting area and a spinning roulette wheel. This casino game originated in France in the 18th century with its name being a French word meaning little wheel. Over time, this casino game garnered popularity and spread all over Europe and the United States. Today the classic game is enjoyed by people worldwide and is undoubtedly one of the most popular casino table games. Understanding roulette odds when playing on sites with rules on odds, such as roulettesites.org, is a necessity. This is guaranteed to give you an edge at the table whether at your local casino or even online, as it is in this case.

As the world struggles to stay afloat during this coronavirus pandemic, many are turning to roulette, and mobile games, such as castle cash to pass and time and make some extra cash.

Odds in online roulette

The roulette wheel usually has either 37 or 38 slots depending on the variation used. Playing the American slot with 38 slots is believed to mildly lower the chances of winning in comparison to the European one with 37 slots. The numbers are usually randomized in an attempt to keep neighbouring numbers on the board from appearing together on the wheel, but experts argue that this randomization has little to no effect on the possibility of hitting a number. This also makes it possible for players to place roulette wheel section bets which are usually placed based on how the numbers appear on the wheel. Roulette bets can either be placed inside or outside.

Inside bets are usually placed on the numbers found on a roulette board while outside bets are placed with numbers outside the matrix and players bet on larger groups of slots. Outside roulette bets are easier to hit although their pay-out is low and are preferred by people who prefer low risks. Inside bets are for the risk takers as they have higher pay-outs but are much harder to hit. Beginners and low rollers are usually advised to go for outside bets to increase their chances of winning. Final bets are usually placed on all the slots that end in a particular number. To make a maximum bet a player needs 40 chips and the bet is then placed on all squares, splits, streets and six lines.

Before approaching a roulette table it is important to know the odds of the game which were calculated ages ago. The house edge comes into play where, every time zero is hit, every other bet on the table is removed except for the ones that were placed on zero. As a result, even money bets stand a 50% chance to win. Even money bets are seen where a player decides to split the board in half. This is done either as odd or even, by colour or by being in the first or last half. The house edge however usually reduces this chance to about 48.65% in the European variation and 46.37% in the American variation. A dozens dozen combination has a 32.43% chance in European roulette and a 31.58% chance in the American variation. When placing inside bets, the odds increase when players bet on a higher number of slots. In the European variation, the highest possibility of winning sits at 16.22% while for a 6 line bet ion the American variation it is 13.16%. It is clear to see that European roulette has better odds in comparison to American roulette and thus players are advised to play European roulette. Over the years, strategies have been developed to increase players’ chances of winning, even as many still believe that roulette machines do not belong to the high street.

Odds for Inside bets

Roulette Bet


European Variation Odds

American Variation Odds

Straight: Single Number

Betting on one specific number



Split: 2 Number Combination

Betting on 2 out of 37 available numbers. (Numbers must be neighbours on the table)



Street: 3 Number Combination

Betting on a row of numbers such as 6,7 and 8



Corner: 4 Number Combination

Betting on numbers forming a square on the table such as 1, 2, 4 and 5.



Basket: 5 Number Combination

(Only in American Variation) Betting on the zero, double zero, 1, 2 and 3.



Double Street: 6 Number Combination

Betting on 2 rows of numbers adding up to 6 numbers




Odds for outside bets

These bets are mostly preferred by people who want to play it safe.

Roulette Bet

European Variation Odds

American Variation Odds




Red/ Black



Low/ High






Even/ Odd




How to Improve your Roulette Odds

If they intend to play it safe and maximize your odds, players are advised to stick to the table’s minimum and make plays on the outside bets. Players are also advised to spread their bets by placing two equal amount bets on two outside bets. In the European variation, the highest possibility of winning sits at 16.22% while for a 6 line bet ion the American variation it is 13.16%. It is clear to see that European roulette has better odds in comparison to American roulette and thus players are advised to play European roulette. Players can also use roulette strategies that are proven and have withstood the test of time. Professionals use strategies such as the martingale strategy, reverse martingale strategy, the Fibonacci strategy, multi-chip betting patterns and exploiting roulette flaws.

In conclusion, the understanding of roulette odds, can, and has been used to come up with strategies that have helped players win big over the years. Players should also take note that the house edge will always be against them and should, thus, know when it’s time to quit to avoid heavy losses. For pass time, however, you may want to indulge in mobile games like beasts vs bots

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Last Updated: Jun 04, 2020