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Blogs Jul 30, 2025 5 min read by Alice

Everything you require to learn on roulette’s house edge?

Everything you require to learn on roulette's house edge?

Punters have a proverb that “the house always wins.” It effectively indicates that the casinos will always gain, irrespective of a player’s previous expertise with casino games. While this isn’t entirely accurate, the casino does stay ahead most of the time. Newer casinos, like any other business enterprise, are established to make money. They earn by profiting off the losses of other participants. However, this does not guarantee that the house will always win. People can select from a wide range of titles, many of which offer better probabilities than others.

What exactly is House Edge?

House edge or a casino’s edge is simply the advantage it has over its customers. The house edge represents the discrepancy between the chances of winning and the casino’s payment for successful bets in particular games. While all casino games are designed to benefit the house, table games such as roulette provide players with a higher possibility of succeeding, despite the fact that the gameplay is totally reliant on luck.

How to Work Out the House Edge When Playing Roulette?

European Roulette Table

European Roulette Table

The European roulette wheel has a total of 36 digits. The colours black and red are used in the numbers 1 to 36. There is, however, a green spot labelled 0 that you will notice. Putting a 0 on the roulette table offers the house some advantage because players will only be compensated for 36 digits instead of 37. In layman’s terms, this indicates that players are getting compensated 2.7% less than they ought to.

Each of the equal-sized black and red slots contains a different number (18 each). Whenever a player bets on a black slot, they are truly gambling on 1 of the 18 black digits. The ball should easily land on a single black digit, right? For many of the players, this appears to be a 50-50 proposition. That isn’t the case, though. Due to the presence of 18 black slots, 18 red slots, and one 0, the odds are 18/37, never 18/36. In this case, the house has a 48.7% edge or advantage. This implies you have a higher chance of losing than winning.

American Roulette Table

American Roulette Table

It’s important to note that the house edge in American roulette differs from European roulette and isn’t in favour of players. The rules of American roulette vary somewhat from those of European roulette. There is an extra “0” on the roulette wheel in this model. This implies that rather than the only one green space seen in the European version, you receive one ‘0’ green slot and a ’00’ green slot on opposing sides.

That’s a total of 38 numbers, which is one more than in European one. Although the appearance of the roulette wheel varies significantly, the game’s rules stay the same. Here a player has to bet as if the wheel had 36 digits on it. This implies that players are only compensated for 36 digits, yet they must still compete against 38 digits. Players would be paid 5.26 percent less than they ought to be in this case.

Suppose a player wagers on a black digit. They will be pitted on 18 red and 2 green digits. The casino has a huge advantage in this game. In this situation, the probability of succeeding is 47.4 percent. As insignificant as it seems for most gamers, it adds up over time, especially if they intend to play for an extended term.

The House Edge’s Influence

As a matter of fact, any advantage the house has over gamers will have a significant influence on the long-term outcomes. Despite the fact that the house edge is reduced in solitary ‘0’ roulette versions, its effect will be strong and consistent.

Gamblers who are still unsure how their betting bankroll will be depleted when gambling on roulette can consider the following scenario. Let’s say you are a constant black better, and you are going to gamble a single chip for 370 spins to see how far your money will survive and how much you will win and lose.

The “0” will appear around 10 times throughout the duration of these rotations, costing players 10 chips each time. Other spins’ outcomes will be consistent since black and red will appear 180 times each in subsequent spins.

Is the house edge in roulette a sign that you cannot possibly win?

Roulette house edge means that playing roulette continually would lead to a loss for you theoretically. The appearance of the green “0” as well as “00” segment, according to gloomy mathematicians, signifies you cannot earn a profit, regardless of the roulette technique you choose.

Even if we’d want to be able to, we can’t play roulette all the time. Each session is limited to a particular length of time. Since the outcomes of roulette games are unpredictable, you may potentially lose while simultaneously winning.

Also a player’s chances of winning in roulette diminish as time goes on because of the higher house advantage in this game. While anybody can win, it is not a wise approach to attempt to recoup lost funds, since this would almost always result in more losses.

To sum up

A decent rule of thumb is to accept the house edge in roulette as true to its stated percentage rate. Avoid letting it sway your decisions at the tables because of a clouded judgement. The house advantage changes based on the type of roulette game you are playing, from higher to lower. When it comes to the popular variants, American roulette has the lowest long-term results, whereas French and European roulette have a reduced house edge.

Alice
Do you go through the game review before you spin, or do you simply launch the slot and hope for the best? In case you belong to the first group, then there is a very good chance you have already read something written by Alice. Alice writes the slot reviews, the how-to-play walkthroughs, and the game guides here at Swift Casino. She is the one who sits with a new release for hours together, clicking the hamburger icon, opening up the pay table, checking where exactly the spin button has been placed on the screen, and noting down how the free spins get triggered, so that you do not have to work it all out on your own. Her interest in slots started in a fairly ordinary way, with a fruit machine in a corner of a pub and a small handful of coins, and it simply never went away after that. So what does she actually look for in a game? Volatility, mostly. Alice is of the opinion that the volatility rating tells you far more about how a session may go than the RTP percentage does, hence, she always mentions both of them, and she explains what they mean every single time, even when it starts to feel repetitive. In case a game offers a return that is lower than the industry standard, she says so plainly. She does not believe in dressing up a weak pay table with pretty adjectives. Are you tired of reviews that read like advertisements? Don’t worry, that is definitely the thing Alice tries hardest to avoid. Every win claim she writes is hedged, because slots are games of chance and you may possibly win nothing at all on a given spin. As mentioned earlier, she covers the special features too, such as the wilds, the scatters, the multipliers, the cascading reels, and more, all of which hold the potential of increasing the chances of the players landing more winning combinations. Away from the reels, Alice is a fairly boring person by her own admission. Long walks, murder mysteries, and a stubborn loyalty to a football team that keeps letting her down. She also writes our responsible gambling explainers, and she treats that work as the important one. Real gambling comes with real risk, and hence, you must play responsibly. At Swift Casino, we take the matter of responsible gambling very seriously and have an entire section dedicated to it, offering players tools for their assistance. Well then, what are you waiting for? Go through Alice’s latest reviews, pick a game that suits your style, and enjoy!
Jul 30, 2025 · 5 min read · View all articles · LinkedIn