Roulette Odds and Probability – Complete Guide 2023

Home » Roulette Odds and Probability – Complete Guide 2023

Roulette is a game of luck; the only control a player has is choosing the color to bet on and knowing the odds to help you calculate and be aware of your chances of winning. To ensure you do not lose all your money while playing roulette, this guide offers you everything you need to know about the different bet types, potential payouts, and lots more.

What are the odds in roulette?

The roulette green odds like any other odds show your likelihood of winning any bet you place on the roulette wheel or roulette table. Since there are 38 numbers currently available in American roulette, the odds of landing a win using a straight-up bet to a single number is 37 to 1. 

The chances for rewards on combination bets are also the same, but the house only offers a 35 to 1 payout on a winning roulette bet. This is a result of the house edge, where the casino keeps a portion of every roulette bet. While the ratio of your bet influences the payout you get, your roulette bets are frequently calculated as a percentage.

How to calculate roulette payouts

The potential payoff odds in roulette are given for each bet type in the form of x:1. This indicates that for every dollar placed as a roulette bet, you will earn x dollars. For instance, a single-number wager yields a 35:1 reward. So, if you win, you’ll receive $35 in addition to your dollar.

What does the green zero do?

Simply put, the green zero adds a risk component to roulette odds. Placing a bet because of the assurance of a predictable outcome is not enjoyable; the thrill of knowing there is a probability of winning or losing the roulette payout makes the game fun for the players. So, the green zero in roulette odds somewhat increases the house edge, which makes roulette bet fun for the players.

roulette, casino,

In terms of placing a bet on a single number, the green zero is identical to other numbers on the roulette wheel though it has a distinct color from the others. Additionally, most roulette bets do not have the number zero, which makes the green zero special. 

Green zero in American roulette

What distinguishes American roulette from European roulette is the green zero. There are additional possibilities to bet on the green zero in American roulette because the green zero and green double zero are both present on the roulette wheel, standing opposite one another. 

An individual can bet on either the single green zero, double green zero, or both zeros. It gives players flexibility and has a house edge of 5.26%. The roulette payout for betting on just one of the green zero options is placed at 35/1; assuming you bet $50, you will receive $1,750 in profit and get your $50 back. 

Green zero in European roulette

Here, there is just one green zero in this game, which implies fewer possibilities to place bets on the roulette odds of the green zero. Based on European roulette having one green zero, their roulette wheel has fewer numbers, increasing players’ ability to play successful bets and have guaranteed roulette payout. 

At European and American roulette tables, a single number has a 35/1 chance of winning. A European roulette wheel has a 36/1 chance of producing a single number, while an American roulette wheel has a 37/1 chance. This implies that when playing European roulette, there is a marginally increased likelihood of hitting the number you selected.

Odds and the potential payout of different bet types

The table below shows the different bet types available, the odds, and their potential payout:

Roulette BetPayout  European Roulette OddsAmerican Roulette Odds 
Single Number35 to 1  2.70%2.60% 
2 Number Combination17 to 1  5.4%5.3% 
3 Number Combination 11 to 1  8.1% 7.9% 
4 Number Combination8 to 1 10.8%10.5% 
5 Number Combination 6 to 1 13.5%13.2% 
6 Number Combination 5 to 1 16.2%  15.8%
Column 2 to 1 32.40%  31.6% 
Dozen   2 to 1 32.40%  31.6% 
Even/Odd1 to 1 48.60%  47.4%
Red/Black1 to 1 48.60%  47.4% 
Low/High1 to 1 48.60%47.4%

Inside vs. Outside bets – how do the odds differ?

What are the odds for outside bets?

Outside bets are among the most popular bet types, and the payout odds are significantly higher, including your chance of winning. For a player who wants to play cautiously, outside bets are ideal, especially for players new to roulette. 

roulette, table, chips

Making an outside bet has many benefits, including that a player can benefit from the “la partage” and “en jail” laws. These laws allow players to get most or all of their money back each time there is a roulette bet, and the ball is being played. The outside bet is based on more numbers, meaning you get to have a number bet on any of your choices.

Outside bet odds

In outside bet odds, 12 numbers are used, and the payout is 2-1; it almost fills up a third of the wheel because there are 12 digits in a row. The table coverage for European roulette is 32.4%, and for American roulette odds, it is 31.6%, with a winning payoff of 2 to 1. We have various types of outside bets, which are:

Dozen Bet

Twelve numbers can be wagered here, which is either the “first 12 boxes,” “second 12 boxes,” or “third 12 boxes.” The table coverage for European roulette is 32.4%, and for American roulette, it is 31.6%, with a winning payoff of 2 to 1.

Bet on color

In a bet on the color, when placing a bet, every red or black number is included in the bet, and the bet is on all the black ones. Bet on color does not need expertise because even novices can win. The good thing is that a player has a roulette payout of 1:1 when they win. 

Bet on Even/Odd

This outside bet contains either all even or odd numbers. The wager is made on either all even or odd numbers. For European and American roulette odds, the payout is one-to-one, and the table coverage is 48.6% and 47.4%, respectively. Single and double zero slots are not included in the even or odd bets, except on European and French roulette tables, which means a player will not have a roulette payout when their ball lands on single or double zero. 

The bet on the Low/High option 

A player can choose all low or high numbers available and place their chips on the numbers 1 to 18 or 19 to 36, representing nearly half the numbers on the wheel. This bet option has a payout option of 1:1.

What are the odds for inside bets?

All roulette bets available to players and placed on the table’s inner part are known as inside bets. An excellent example of how inside bets work is when players place a chip on a single number. There is the assurance of a higher payout in inside bets though there is a reduced chance of winning. So, inside bets are the right option for players interested in better payouts and are suited for more significant risks. 

Inside bet odds

There are various types of inside bet odds available, and they are:

Straight up bets

This is placing a chip on top of one number, with winning odds of 35 to 1. A straight-up bet might be made on Red 18, in which case the winning condition is that the ball land precisely on this combination of the number and color. It has high benefits; it is straightforward though the likelihood of winning is low. 

Split bet

A split bet is often referred to straight-up double bet. It happens when a player bets on two adjacent numbers between the numbers, the examples are 15 and 16, and this wager’s winning payout is 17 to 1.

Street bet

It occurs when three numbers appear in a row. Examples are 7, 8, and 9, and the odds of winning are 11 to 1.

Corner bet

A corner bet involves placing a bet on four numbers at once instead of three. As a result, the wager includes a quartet of numbers placed in the corner where the quartet of numbers touches; it has the winning odds of 8 to 1.

Five bet

The Five Bet is a bet with zero, double zero, one, two, and three and is placed right next to 0 and 1. This bet can only be utilized on American roulette tables because it includes betting on 00. It has winning odds of 6 to 1.

Line bet

It is made up of two rows with three numbers each, and the number bet is placed directly between the ends of the two rows. It has winning odds of 5 to 1.

Is it possible to improve your odds at roulette?

Focusing on the outside bets is the best trick for higher chances of winning at roulette and reducing the likelihood of losing money on a roulette wheel. The even or odds, black or red, and low or high bets in roulette give you the best odds of winning, though the wins may not be very high compared to inside bets.

To improve your odds at roulette, make use of these tips:

Be prepared when you play

The chances of winning on various wagers in roulette vary greatly. A player should research the possibilities of multiple bets paying off before playing if they want to win because they will know their payout odds.


If you need clarification on playing American, French, or European roulette, make sure you understand the odds for each version before you start. Determining whether your game of choice has a more significant house edge could prevent losses from being slightly more expensive. Go for European roulette because they have the lowest house edge.

Improve your odds by placing outside bets 

Outside bets are the way to go for a player whose primary goal is to increase their chances of winning in roulette. Sticking to the minimum bet option allowed at the roulette table and playing two equal outside bets like Black and odd ensures a player gets more payouts while minimizing risks. Although placing bets in this manner won’t significantly boost a player’s roulette winnings, it is a way to still have fun without suffering significant financial loss.

How to play Roulette at Bet999

Playing roulette at Bet999 is pretty straightforward. This is what you should do:

Place a wager.

If you are playing online, decide how many chips you want to use to wager. After that, place your chips on the bet you want to make.

Rotate the wheel

There is no time limit when playing online roulette. When you are ready to play, press a button that has a spin on it; when you do this, the ball enters the roulette wheel.

The result

As the wheel halts, the ball enters a pocket on the wheel. A random number generator(RNG) is used in online roulette games to generate the results.

The outcome

If you are lucky, you will win and get paid; after this, another round begins promptly, which any player is welcome to join.


What are the odds of hitting red or black in roulette?

The probability of red or black in American roulette is 47.4%. In contrast, in European roulette, this increases slightly to 48.6%, which means that a player’s roulette winnings would be divided equally in both scenarios.

How good are the odds in roulette?

Overall, the odds in roulette are not too bad. European roulette has the most incredible odds, with a house edge of just 2.64%. This explains how frequently a player loses on a single wager on average. It lands on zero, and it is seen as an excellent way for casinos to increase their house edge.

The zero number is significant to casinos because it determines the House Edge in roulette. You have a 50% chance of winning when you bet on red or black, even or odd numbers, or a randomly generated roulette wheel. But, it falls shorter than 50% because casinos have 0 on the wheel.

What is the highest roulette odds probability?

On a roulette wheel, a variety of outside bets have odds of 48.60%. The highest odds, for instance, are offered by Even/Odd, Red/Black, and Low/High stakes on roulette’s European (48.60%) and American (47.40%) layouts. With these roulette betting odds, you have a nearly 50:50 chance of winning.

What are the best odds in roulette?

In roulette, the outside wagers on even or odd, red or black, or the numbers 1 through 18 or 19 through 36 have the best odds, and the payout for each of these wagers is 1:1.

How much does green pay in roulette?

The type of roulette being played and the player’s bet size shows that green gives roulette pay of 35 to 1 or 17 to 1 when there is a bet. American roulette has a green single and double zero on the zero wheels, while the European version only has a single green zero on the zero.

What color comes up most often in roulette?

Results are more frequently black or red than green. A black or red result is 18 times more frequent than a green one in American roulette because there are 36 black or red spaces for every two green ones. The results of Black or red are 36 times more frequent than green ones in European roulette.

Can a roulette betting system improve your odds?

Using a betting system is a tactic to increase your chances of winning at roulette. There are many different betting strategies, but they all involve raising your stake following a setback and lowering it following a victory. This method will enable you to recover your losses and turn a profit. However, it is crucial to remember that no betting system can ensure success, so use them responsibly.

Can maths help you win at roulette?

No, but with the help of maths, it is shown that any attempt to change a losing game into a winning one through any strategy is impossible. It also proves that the odds are against a player with an unbiased wheel with at least one zero, possibly a double zero or triple zero.

Does the house always win in roulette?

No. The house edge in American roulette is 5.25%, meaning the casino is more likely to make money from players. European roulette, in contrast, gives the player a higher chance of winning, while for single-zero wheels, its house edge is 2.6%. 

What is the highest payout in roulette?

Straight, sometimes known as a single-number bet, is a wager on one particular number with the highest roulette payout. Naturally, this bet has the lowest chance of winning and the highest payout, 35:1. There is a 2.70% and a 2.63% probability, respectively, that the ball will land in the specific pocket you bet on in European and American roulette.

Can you win money playing roulette?

The outcome of roulette is based on chance because it is a gamble. In roulette, the house edge never equals zero, irrespective of the game being played.

You can use roulette strategies to guide your play, but you will only sometimes come out on top. To increase the possibility of you winning, avoid all bad bets and concentrate only on those that give you the best winning odds.

What is an outside bet?

The term “outside bet,” used by roulette players in casinos, refers to various bets that can be placed during a round of roulette on the roulette table.

If you have ever played roulette, you may have observed that the table layout is somehow divided into two sections. The inside betting area is one of the spaces, and outside bets are placed in the other.

There are different manufacturers of the roulette table, which infers that t the markings printed on the cloth of the roulette table can have another arrangement. However, placing a wager on the first, second, or third set of 12 numbers (1:18, 19:36) or on red or black would be considered an outside wager.

Where do the strategies for raising the roulette odds come from?

The two most widely used roulette odds strategies are the Martingale and Double-O-Seven systems. The Martingale method, which has even odds payout bets like Red/Black, is French and dates back to the 18th century. The James Bond film series creator created the Double-O-Seven strategy, which calls for a unique way to spread your bets.

How to calculate roulette odds and their payouts?

Determine the number of successful situations, count all possible results, and subtract the total number of outcomes from the number of winning scenarios. Multiplying the number by 100 provides the percentage of the number.

Does Zero have the lowest odds in roulette?

Since it is a single number and a player would receive a 35:1 payoff if the ball lands on zero, the number zero is one of the least common bets in roulette. It is simply because other bets like outside even money bets, red or black, column bets, and so forth do not pay out when the ball lands on zero, and it is seen as an excellent way for casinos to increase their house edge.

The zero number is significant to casinos because it determines the House Edge in roulette. You have a 50% chance of winning when you bet on red or black, even or odd numbers, or a randomly generated roulette wheel. But, it falls shorter than 50% because casinos have 0 on the wheel.

What is the highest roulette odds probability?

On a roulette wheel, a variety of outside bets have odds of 48.60%. The highest odds, for instance, are offered by Even/Odd, Red/Black, and Low/High stakes on roulette’s European (48.60%) and American (47.40%) layouts. With these roulette betting odds, you have a nearly 50:50 chance of winning.

One Reply to “Roulette Odds and Probability – Complete Guide 2023”

  • Kimberly says:

    CYou can gauge your potential return on a roulette wager by looking at the odds of using a prediction. A straight-up stake on a single digit in American roulette has a 37:1 probability of succeeding

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