Understanding The House Edge In Online Casino Games

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Posted: March 5, 2025

Updated: March 5, 2025

Although we'll be the first to admit that we enjoy games for their fun element as opposed to their winning potential, sometimes it's good to refrain from simply throwing good money after bad. Knowing the house edge of a casino game let's us decide whether it's worth our time. Especially if we want to improve our winning chances.

When it comes to online casino games, there’s one term that you’ll hear over and over again: the house edge. It’s a concept that’s crucial to grasp if you want to make informed decisions about where to place your bets and how to manage your bankroll. But what exactly is the house edge, and why does it matter? In this article, we’ll dive deep into understanding the house edge, how it varies between games, and what it means for your chances of winning. Whether you’re a seasoned player or a newbie, this Gamingzion.com guide will help you navigate the world of online casino sites in the US and beyond.

 

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What Is The House Edge?

Let’s start with the basics. The house edge is the mathematical advantage that the casino has over the player in any given game. It’s the percentage of each bet that the casino expects to keep in the long run. For example, if a game has a house edge of 5%, it means that for every $100 you wager, the casino expects to make $5 in profit over time. This doesn’t mean you’ll lose $5 every time you play. It’s a long-term average that ensures the casino stays profitable. Understanding the house edge is essential because it directly impacts your chances of winning. The lower the house edge, the better your odds of walking away with a profit. That’s why savvy players often seek out games with the lowest house edge possible.

How To Find The House Edge

According to online casino news in the US, most reputable online casinos will provide information about the house edge for their games. You can usually find this information in the game rules or help section. If you’re not sure, don’t hesitate to reach out to customer support for clarification. It’s also worth keeping up with online casino news in the US, as new games and rule changes can affect the house edge. For example, a new version of blackjack might offer better odds, or a popular slot might increase its house edge to fund a larger jackpot.

Understanding The House Edge In Online Casino Games

Now that we’ve covered the basics, let’s talk about how understanding the house edge can help you make better decisions when playing online casino games.

understanding the house edge
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No matter if you’re spinning the reels at Bet365 Casino 2x or trying your luck at a live dealer table. Knowing the house edge can give you a significant advantage.

Slot Machines

Slot machines are a staple in casinos, both land-based and online. They are known for their simplicity and potential for large payouts. However, they also tend to favour the house more than other games. The house edge for slots can range significantly, typically from 2% to 15%. This wide range depends on factors like the game’s design, bonus features, and whether it’s a progressive jackpot slot. Progressive slots, for instance, often come with higher house edges because a portion of each bet contributes to the jackpot. This can result in massive payouts but also increases the overall house edge.

For example, if you’re playing a slot with a 10% house edge, the casino expects to retain $10 for every $100 wagered over the long term. It’s true that slots offer entertainment and the allure of big wins. But they’re generally not the best choice for those aiming to minimize the house edge due to their higher variance and lower RTP (Return to Player).

Understanding The House Edge In Blackjack

Blackjack is renowned for being one of the most player-friendly games in the casino. This is primarily due to its low house edge when played with optimal strategy. The typical house edge in blackjack can be as low as 0.5%. Thus making it highly attractive to players who are strategic and understand the game dynamics well. Adhering to basic strategy thanks to understanding the house edge will lead to optimal decisions.

It’s worth noting that the exact house edge in blackjack can vary depending on the specific rules of the game. Variations such as whether the dealer hits or stands on a soft 17, and crucially, the payout for a natural blackjack (typically 3:2 versus 6:5), significantly impact the overall house edge. Games that pay 3:2 for blackjack naturally offer better odds for players. Especially when compared to those that pay 6:5, where the house edge increases noticeably. Therefore, understanding these rules and choosing tables with player-friendly conditions is key to maximizing your chances in blackjack.

 

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Roulette

Understanding the house edge in roulette is essential as it offers different house edges depending on whether you’re playing American or European roulette. In American roulette, which features both a single zero and a double zero on the wheel, the house edge stands at 5.26%. Conversely, European roulette, which includes only a single zero, cuts the house edge nearly in half to 2.7%. This seemingly small difference in the presence of an extra zero can significantly affect your long-term results.

The distinction arises because the additional double zero in American roulette increases the total number of possible outcomes, thereby slightly reducing the probability of winning on any single bet. Over time, this decreases the overall RTP compared to European roulette. Choosing European roulette over its American counterpart is therefore advisable for players looking to extend their bankroll and minimize the casino’s advantage.

Baccarat

Baccarat is a favorite among high rollers due to its straightforward gameplay and low house edge, especially on certain bets. The two primary bets in baccarat are the banker and player bets, which carry house edges of 1.06% and 1.24%, respectively. These edges are remarkably low compared to most other casino games, making baccarat highly attractive to those seeking favorable odds. Conversely, the tie bet in baccarat has a much higher house edge, typically around 14.36%. It offers a higher payout if successful.

Yet its significant house edge makes it a less favourable option for strategic players looking to maintain a consistent advantage over the casino. Opting for the banker or player bets in baccarat is generally recommended to keep the house edge minimal. It’ll also maximize your chances of winning over the long run.

Craps

Craps, a dice game with a myriad of betting options, offers varying house edges depending on the type of bet placed. The simplest and most popular bet in craps is the “pass line” bet, which carries a house edge of just 1.41%.

understanding the house edge
Picture Source: Wikimedia Commons

This makes it one of the most favorable bets in the entire casino, alongside certain blackjack variations. In contrast, more interesting bets in craps, such as the “any seven” bet, come with significantly higher house edges, often around 16.67%. Understanding the house edge in craps is crucial because it allows players to make informed decisions about where to place their bets. Sticking to the pass line and other low-edge bets can substantially improve your odds of winning consistently in this fast-paced and exciting game.

Tips For Minimizing The House Edge

In truth, the house edge ensures that the casino has a long-term advantage. However, there are ways to reduce its impact and improve your overall gambling experience. By making smart choices about which games to play, how to bet, and how to manage your bankroll, you can give yourself the best possible chance of walking away with a profit. Or at least extending your playing time. Below are key strategies to help you minimize the house edge and make more informed decisions when gambling.  

Choose Games With A Low House Edge  

By understanding the house edge you’ll recognise that not all casino games are equal. Especially when it comes to your chances of winning. Some games have a much lower house edge than others, meaning you will theoretically lose less money over time. Blackjack, baccarat, and European roulette are among the best options for players who want to minimize the house edge. Blackjack, when played with basic strategy, can have a house edge as low as 0.5%. Baccarat’s banker bet has an edge of just 1.06%. In truth, this makes it one of the most favorable bets in the casino. European roulette, which has a single zero, has a house edge of 2.7%. This is significantly better than the 5.26% edge found in American roulette.  

understanding the house edge
Picture Source: Wikimedia Commons

On the other hand, games like slot machines, keno, and certain types of craps bets have much higher house edges. Slots can have a house edge anywhere from 2% to 15%, depending on the game and whether it’s a progressive jackpot slot. Keno is even worse. Its house edge that can reach 25% or more. By selecting games with a lower house edge, you give yourself a better chance of lasting longer and potentially making a profit.  

Understanding The House Edge – Learn Optimal Strategy  

Certain casino games, such as blackjack and video poker, allow players to use strategy to influence the outcome. Unlike games of pure chance, these games reward players who take the time to learn the best possible moves. Blackjack, in particular, has a well-documented basic strategy. One that tells players exactly when to hit, stand, split, or double down based on their hand and the dealer’s upcard. By following basic strategy, you can reduce the house edge to around 0.5%. This is a huge improvement over simply guessing or playing based on gut feelings.  

Video poker is another game where strategy can make a difference. Depending on the specific game variant and paytable, the house edge can be very low. Especially if you make the correct decisions on which cards to hold and discard. Some video poker games, such as Jacks or Better with full pay (9/6 payout structure), can have a house edge of less than 1% when played optimally. By learning and practicing the right strategy, you can greatly improve your odds of winning over time. Many casinos even allow players to use basic strategy charts at the table. So there’s no reason not to use them when playing. 

Manage Your Bankroll  

Even if you’re playing a game with a low house edge, proper bankroll management is essential. This will ensure you don’t run out of money too quickly. Understanding the house edge affects your expected losses can help you make better decisions about bet sizing and playing time. For example, you’re playing a slot machine with a 10% house edge. Then you can expect to lose $10 for every $100 wagered over the long term. Knowing this, you might choose to play lower-denomination slots or make smaller bets to stretch your bankroll further.

understanding the house edge
Picture Source: Flickr

Similarly, if you’re playing blackjack with a house edge of 0.5%, you can expect much smaller losses over time, making it a better option for those who want to play longer without depleting their funds. A good rule of thumb for bankroll management is to only bet a small percentage of your total bankroll on each wager. Many experienced players recommend betting no more than 1-2% of your bankroll per bet. Especially in games like blackjack and baccarat. This approach helps prevent major losses and allows you to weather the natural ups and downs of casino gaming.

Avoid Side Bets  

Side bets in casino games often seem tempting because they offer the chance for big payouts. However, by understanding the house edge, you’ll notice that they usually come with much higher house edges than the main bets. For example, in blackjack, the “insurance” bet is often offered when the dealer’s upcard is an Ace.

While it might seem like a good way to protect your hand, this bet actually has a house edge of around 7%. This makes it a bad choice for most players. Similarly, in baccarat, the tie bet offers an attractive payout of 8:1 or sometimes even 9:1. But it comes with a house edge of over 14%. Compare this to the much lower house edges of the banker (1.06%) and player (1.24%) bets. Then you’ll see it’s clear why avoiding the tie bet is a smarter move.  

Craps also have a variety of side bets with high house edges. While the pass line and don’t pass bets have low house edges (1.41% and 1.36%, respectively), other bets like “any seven” (16.67% house edge) and “hardways” (house edges ranging from 9% to 11%) should generally be avoided if you’re looking to play smart. The bottom line: Side bets may offer bigger payouts. But they come at a steep cost in the long run. If your goal is to minimize the house edge, it’s best to stick to the main bets.  

Understanding The House Edge Is Key To Smart Gambling

At the end of the day, understanding the house edge is one of the most important skills you can develop as a casino player. It’s not just about knowing which games offer the best odds. It’s also about making informed decisions that can help you maximize your winnings and minimize your losses. Whether you’re playing at Bet365 Casino 2x or exploring other online casino sites in the US, keeping the house edge in mind can make all the difference. So the next time you sit down to play, take a moment to consider the house edge. See how it affects your chances of winning. With a little knowledge and a lot of luck, you might just come out ahead.

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