Roulette Odds: What Are The Odds Of Winning At Roulette? - partycasino

Roulette Odds: What Are The Odds Of Winning At Roulette?

Roulette Odds: What are the odds of winning at roulette?

Key Takeaways:

  • Roulette is a game of chance with odds and probabilities that vary based on the type of roulette variant and bet placed.
  • American roulette has a higher house edge (5.25%) than European (2.70%) and French roulette, making it less favourable for players.
  • Probability is the likelihood of an event happening, while odds can refer to true odds, payout odds, and implied odds.
  • European and French roulette odds are more favourable than American roulette odds due to the absence of the 00 pocket.
  • Outside bets offer higher probabilities but lower odds, while inside bets offer higher odds but lower probabilities.
  • Understanding roulette odds and probabilities can help players make informed decisions and potentially improve their chances of winning.
  • It's essential to set limits and choose the right table when playing online roulette to manage risks and maximise potential winnings.
  • Roulette relies entirely on luck, and no betting strategy can guarantee a win.

Roulette, a classic casino game that has captivated the hearts of many, offers a thrilling experience as players attempt to predict the outcome of the spinning wheel. This article delves into the intricacies of roulette odds and probabilities, exploring the varying odds associated with different roulette variants and bet types. By understanding these aspects, players can make informed decisions and potentially improve their chances of winning in this exciting game of chance.

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Understanding Roulette Odds

The odds of winning at roulette depend on several factors, with the primary factor being the variant players choose. Online casinos usually offer American and European versions of roulette wheels, each with different winning odds. American roulette odds differ, with a house edge of around 5.25%, while European roulette has a house edge of approximately 2.70%.

Another factor that influences winning odds in roulette is the type of bet placed. Even money bets, such as high or low, black or red, and odd or even, offer the best winning chances at nearly 49%. The least likely bet to win is a straight-up bet, with players having around a 2.70% chance of correctly predicting a single number on the wheel.

Difference Between Probability and Odds

Though linked, there are essential differences between probability and odds that players should be aware of. Interestingly, there are several interpretations of odds, which we will cover below!


Probability is the likelihood of an event happening or the number of times it will occur during a set number of attempts. It can be calculated mathematically by comparing the chosen event to other possibilities. For example, if someone tries to guess a number from 1 to 10, they are expected to predict the number correctly once every ten tries. This translates to a probability of 10%.


Three types of odds are related to the probability of an event occurring or not. The 'true odds' represent the chance of an outcome happening. For example, on a European roulette wheel, there are 37 slots, meaning that the 'true odds' of predicting the correct number are 36 to 1.

Next, 'payout odds' refer to the potential winnings associated with each outcome on the roulette wheel. Betting on red or black, for example, offers odds of 1:1, also known as 'even money'. The 'payout odds' usually differ slightly from the 'true odds' because they incorporate the house edge.

Lastly, 'implied odds' convert probability into odds format. For instance, if something has a 20% chance of occurring, the implied odds are 1/4. The 1 represents the implied chance of success, while the 4 relates to the chance of the desired outcome not happening.

Roulette Odds Types - partycasino

Roulette types and their probabilities

Different roulette variations have varying probabilities, both for the overall chance of winning and the probability of different bets being successful. Let's explore three of the most popular roulette variations and explain their probabilities!

European Roulette Odds

A European roulette wheel has 37 slots in which the ball can land, one being a zero and the others represented by the numbers 1 to 36. The house edge for this version is approximately 2.70%. Some of the most popular odds, known as 'even money' bets, have a probability of around 48.65% and odds of 1:1. European roulette odds are among the best.

American Roulette Odds

American roulette has two zero slots, represented by a 0 and a 00. This seemingly minor change increases the house edge to around 5.25%, making it one of the least favourable roulette variants. However, it's not the worst, as triple zero and mini roulette have higher house edges.

For example, the red or black bet has a 48.65% chance of hitting on a European layout, which decreases to 47.40% on American tables, with the odds remaining the same at 1:1. Considering this decrease in probability, it's no surprise many players prefer European roulette odds.

French Roulette Odds

French roulette shares the same board layout as European roulette and offers the same roulette odds UK players can expect. Although this variation has extra rules, they don't impact the roulette probability. The odds for various bets, like the straight-up bet on a single number, are identical, with a probability of 2.70% and potential winnings at 36 to 1. In short, French roulette odds payout is the same as on European tables.

Exploring Bets and Their Odds in Roulett

Having covered the different wheel types, let's examine the range of betting options and their roulette betting odds. Some bets are more popular than others, but all come with the same house advantage. The probability and odds associated with each bet differ, and these probabilities are based on the European roulette variation.

Outside Bets and Odds

Outside bets cover a large portion of numbers, offering higher roulette probability than inside bets, but with lower odds. Some popular outside betting options include:

Black or Red Bet and Odds

This bet is among those with the best roulette odds. Players bet on whether the chosen number will be red or black. If this bet wins, the payout is 1:1, with the probability being around 48.65% on a European roulette wheel. Although some may think this bet has a 50:50 chance, landing in the 0 pocket results in a loss.

High/Low Bet and Odds

Betting on whether the winning number will be high or low offers the same odds and probability as the red or black bet. Low numbers range from 1 to 18, while high numbers are 19 to 36. With 18 numbers covered, potential winnings are 1:1, and the probability is 48.65%.

Column Bet and Odds

Column bets cover 12 numbers and give players approximately a 32.43% chance of success. If the ball lands on any of these 12 outcomes, the bet pays 2:1. Column bets are usually found on the roulette board's far right and are often labelled '2 to 1'.

Dozen Bet and Odds

Dozen bets cover 12 numbers on the board and are displayed above the 'even money' bets as '1st 12', '2nd 12', and '3rd 12'. If the ball lands on one of these 12 numbers, the payout is 2:1, with a probability of 32.43%. This bet differs from column bets since the outcomes are numerical.

Inside Bets and Odds

Inside bets cover fewer numbers or a single number, resulting in higher odds but lower probability. Here are some inside bets and their online roulette odds:

Straight Bet and Odds

Straight bets involve betting on a single number, offering the highest odds at 37:1. The probability of winning a straight bet is 2.70%.

Split Bet and Odds

A split bet covers two adjacent numbers on the board. Players can place chips on the line where the two numbers meet, with a probability of 5.40% and a payout of 17 to 1.

Street Bet and Odds

Street bets cover three consecutive numbers (e.g., 1, 2, and 3) and can be placed by laying chips on the outer grid, at the top or bottom of the row. The probability is about 8.10%, with odds of 11 to 1.

Square or Corner Bet and Odds

Placing a square or corner bet covers four numbers where their corners meet on the roulette betting area. If the ball lands on any of the four numbers, players receive a payout at the rate of 8 to 1. The probability of this outcome is 10.80% on European roulette tables.

Six Line Bet and Odds

Six line bets, also known as 'double street' bets, cover six consecutive numbers. This option has a probability of 16.20%, double that of street bets, with odds of 5 to 1.

Basket Bet and Odds

The basket bet, or 5 number bet, allows players to bet on five different outcomes simultaneously. This bet is exclusive to American roulette variations, as it includes 00, as well as the 0, 1, 2, and 3 pockets. Basket bets have a probability of 13.20% and payout odds of 6 to 1.

Roulette Winning Tips

One tip for roulette enthusiasts is to learn the game's ins and outs before placing any chips. This reinforces that roulette relies solely on luck and that strategies like betting on hot numbers don't influence the outcome. Understanding roulette odds payout can help players select a bet that matches their preferences, considering the odds and probability in roulette.

Choosing a table is another crucial aspect of playing online roulette. Different tables offer various selections, and in some cases, the house edge is significantly affected. For instance, European roulette has a lower house edge than its American counterpart due to the absence of the 00 pocket.

Players should set limits before engaging in any online casino game. At PartyCasino, we provide numerous features to ensure players don't exceed their limits, including setting a maximum cap on daily, weekly, or monthly deposits. We also offer a 'deposit curfew' feature, disabling deposits during specific periods.

Conclusion: The Best Bets for Your Balance

Placing chips on 'even money' bets might be the best option for punters. These bets have the highest probability of success and can help players avoid tilting during losing streaks. Of course, 'even money' betting strategies don't guarantee a win, nor does any other roulette system.

Roulette Odds and Probabilities FAQs

Can You Win at Online Roulette?

Yes, it's possible to win at online roulette, whether on a single spin or a session involving multiple bets. The key is to remember that roulette relies entirely on luck, and the previous result doesn't impact the next. Many players fall into the trap of repeating losing bets, hoping their selection is 'due'. However, this is not the case.

What is the best option in roulette?

'Even money' bets are often considered the best options for roulette players. These bets include even or odd, red or black, and high or low. As they have a higher roulette probability of winning, players may be less prone to tilt while at the table.

How do roulette odds compare to other casino games?

Compared to some casino games, roulette can offer favourable odds to players. While Blackjack and Baccarat usually have a lower house edge, European Roulette provides better roulette odds than many online slots.

Will understanding roulette odds and probabilities help me win?

No, knowing the roulette odds and probabilities won't guarantee a win. However, learning them can deepen your understanding of the game. Roulette is entirely based on chance, and as a result, a win is never guaranteed.

Do roulette odds and probabilities change depending on the variation?

Yes, roulette odds and probabilities can vary depending on the chosen variation. For example, European roulette offers better odds than American roulette. There are also unique alternatives like Lightning Roulette with a different set of odds and probabilities.

What are the roulette payout odds?

When playing European roulette, the total house edge is around 2.70%, while it's approximately 5.25% at American roulette tables. Bets like red or black and high or low can award players with 2x their stake. At the other end of the scale, straight up bets can award 36x.

Which roulette system is the best?

Before discussing different systems, it's crucial to remember that each roulette round is entirely random and based on chance. The Martingale system, which involves doubling the stake size if a bet loses, is perhaps the most widely used roulette betting strategy. However, it comes with a range of associated risks.

What is the probability of landing 0 in roulette?

In European and French roulette, the probability of landing on 0 is approximately 2.70%, or 37 to 1 when displayed as odds. In American variations, the probability of landing a 0 or 00 is roughly 5.25%.