Blackjack Best Odds Guide: What Are the Blackjack Odds With Basic Strategy

It is no strange fact that blackjack is one of the most played casino games across the globe. This game involves players trying to obtain a combination of cards that is worth 21 points. Also known as twenty-one, blackjack rules are simple and equally thrilling. High strategies, including card counting, provide experts with an opportunity to enhance their winning odds.

These blackjack casino odds must be understood to ensure that every scenario faced and a decision made is based on them. In this guide, we will look into the blackjack casino odds, how they affect your winning chances, the house edge, and more. 

Blackjack Casino Odds

Generally, odds represent the ratio of losing outcomes to winning outcomes. Odds define the chances of an event occurring. For instance, the odds of drawing a white ball from 6 white balls, four gold balls, and seven blue balls are 11:6.

Blackjack odds represent the winning chances of a player. A significant reason why blackjack has drawn so much interest among punters all over the world is that it presents beneficial winning odds with respect to other casino games. Its low house edge has made it a popular choice among gamblers.

As a game whose results can be influenced by possessing the right set of skills, blackjack is one of the most advantageous casino games in the world. Proper practice and a high level of skills can be the difference between winning and losing games. However, winning a hand is never a guarantee since it all depends on the cards you get in the end. Yet, knowing the winning odds and the probability of obtaining a specific card can improve your gameplay markedly. 

Odds Definition

To ensure you make the most of every game session, it is important to understand the odds that come with every blackjack variant. In blackjack, odds are represented in percentage, and they help determine the probability of going bust or winning in a specific situation. Since they are affected by several factors, the odds are dynamic, and they can change dramatically based on the game rules, the number of decks, and the house edge. The winning odds of a blackjack game can be as high as 40%. However, this does not imply that the house wins 60% of the games. This is due to the possibility of another result: a push.

Furthermore, when you know your odds of busting in any specific situation – or your odds of obtaining a blackjack – this can help you make informed decisions for your hand. Take, for example, if there is a pretty good chance of going beyond 21, you should avoid hitting. This will boost your winning chances since the right choice will be made at the right time.

You should also know your odds as you apply a strategy if you wish to get the desired result and win more often. You are more likely to lose more if you have no reliable plan, even if you are acquainted with the odds.

Relevance of Probability

Probability is the branch of mathematics that evaluates the likelihood of an event occurring. You must have gathered that this concept is very useful during gambling since it is an analysis of casino games. The basic formula of probability can help in determining the likelihood of an event: the number of winning outcomes divided by the number of possible outcomes.

Take, for example, to find the probability of obtaining an ace of diamonds; you must consider the fact that there is only one such card in a pack of cards. There are 52 cards in a deck, which implies that the probability of having this card is 1/52. It is possible to represent each outcome in a percentage from 0 to 100.

This provides an exact sense of the actual percentage for the occurrence of an event. Through this, you can also evaluate the probability of the same event not taking place. For instance, if the chance of an event taking place is 70%, you can conclude that the probability of it not happening is 30%. Probabilities can also be expressed as odds in some cases.

To illustrate this better, consider the odds of getting a single ace of diamonds. Since there is just one card of this kind and the remaining 51 cards in the deck are not an ace of diamonds, the odds of this situation happening are estimated as 51:1.

Positive and Negative Expected Win Rates

Two important terms can help you understand blackjack casino odds more: Positive and negative expected win rates. These terms are used to describe the odds that players are exposed to under any given circumstances. Another useful term is the true odds. With these true odds, a certain bet can payout at the same rate as the percentage of probability suggests. 

The main goal in blackjack is to ensure that your hand forms a higher total than the dealer. Yet, by surpassing 21, you lose the game automatically. You are presented with two options during every session: hitting and standing. Making the right move can be the difference between losing and winning.

The Probability Bust of a Player

Studying and using the basic strategy chart can help you make informed decisions, especially when it comes to making the right moves. Besides this, it is also good to be acquainted with the player bust probability. This gives you a general idea of the position that you are in. With this, the logic behind every move can be easily understood and remembered. Take, for example, if there is a total of 11 (at most) in your hand, there is no need for any mathematics before you realise that the odds of busting are 0%. 

There is another interesting odds percentage, and it involves the probability of getting the highest paying combination: the blackjack. The probability of getting a 10-valued card and an ace in a single deck of cards is 4.83%. However, if the game is played with two decks, this probability becomes 4.77%. 

House Edge Definition

When it comes to blackjack casino odds, the house edge is an important concept that must be understood. The house edge represents an advantage that casinos have over you whenever you play a casino game, in this case, blackjack. After all, a casino is simply a business, and making profits over a long period is an objective. 

It refers to the percentage of the amount wagered that belongs to the casino in the long term. Simply put, this is the amount that is expected to return to the house over a long period, regardless of any small wins, huge losses, or huge wins. Every casino game must have a house edge.

Take slot games, for example. The house edge can be as low as 1% for some games. This number can rise as high as 13% in others. A 1% house edge implies that for every $100 that is wagered, the house receives $1. Slots machines are programmed to return this fixed amount over a large number of spins.

Variation of House Edge

In blackjack games, the low house edge can vary between 0.5% and 1%, making it a good casino game to try out. This house edge is dynamic, and it can reduce – with the right skills – or increase during game sessions. This house edge is an average number taken over a large set of games, and it also varies from one variant to another.

Furthermore, assume that you are playing immortal romance, which is a slot game with a house edge of 6.5%. What this implies is that for every $100 wagered per session, you are expected to lose $6.5. For 20 game sessions, this figure can quickly rise to $130. Of course, you can achieve a huge win or a small win if you play this game.

Yet, this figure shows you the amount that casinos are “expected” to make when you try out the game, thereby providing you with information on your winning odds even before playing. In blackjack, the house edge is an average number since the result of every hand can be different. There could be a loss, a tie, or a win.

The Relationship Between the House Edge and RTP

Closely related to the house edge is the Return-to-player (RTP). The RTP represents the percentage of the amount wagered that is returned to the player over a large set of games. This is another term that can help you determine whether you are winning blackjack casino odds. It shows the expected payout that you can get for playing a game over a long period.

Since it depends directly on the house edge, the RTP is a factor that varies from one blackjack variation to another. Generally, the higher the RTP, the more profitable a particular game is. You can figure out the RTP once you are acquainted with the house edge. For example, a blackjack variant that has a house edge of 1% will offer an RTP of 99%. 

Does a Good Blackjack Strategy Improve Winning Odds?

The low house edge is one of the advantages of trying out this casino game. After all, the house edge significantly influences your winning odds. With this in mind, players find blackjack variants with a high house edge to be disadvantageous. As mentioned earlier, most blackjack variants have a house edge of 1% or lower.

In blackjack, having a plan or game strategy is crucial since the house edge is estimated on the assumption that the basic strategy is adopted. Having a good game strategy can help you minimise the house edge markedly. This can be as low as 1%. On the other hand, if you do not apply a solid strategy, this house edge can rise to 2% or more. 

The house edge in blackjack depends on specific rules. Yet, adequate preparation for all possible hands can help you have a great influence on this aspect. Besides this, discipline and self-control are very important to achieve this goal. To win blackjack games, you must be disciplined enough to adhere strictly to your strategy at all times. You should not be tempted to deviate from it in an attempt to chase your losses since this will lead to more losing hands.

The Concept of Card Counting

There are other methods that are adopted by more advanced players to increase their winning blackjack casino odds. Card counting is one of them. This method can be very complicated since it requires you to monitor the cards that are on the table during game sessions. This method is most effective when combined with other basic strategies. 

With card counting, you can determine the ratio of high cards to low cards. This information can be very useful to estimate the expected average win rate per hour. Nonetheless, you must never forget that blackjack is a game, and the house edge will still have an effect eventually. To enjoy these strategies, focus on the bigger picture since their impacts are only felt in the long term.

Is Card Counting Legal?

According to federal, local, and state laws, counting cards is not illegal unless a form of card-counting device is employed. However, most casinos – especially in Nevada – frown at card counting. Even though it is a complicated strategy, it is a powerful one that can help players reduce the house edge significantly. In fact, you might see the pit boss walk up to you and say, “Sorry, sir, your time at this table is up. You can try any of our other casino games”.


Blackjack casino odds do not simply provide you with crucial information on your winning chances, but you can also use them to make informed decisions. Certain terms, including house edge and RTP, can also help you estimate your winning odds. Yet, it must be stressed that these blackjack casino odds are dynamic in practice. For this reason, you can increase your winning chances by adopting effective game strategies. However, failing to have or follow a precise plan can reduce your odds of winning. Besides this, high-value casino comps can also help you reduce the house edge, thereby improving your blackjack casino odds.

Internet Slots FAQ’s

Is blackjack easy for beginners?

Blackjack is a relatively easy game to learn, especially for beginners. The basic rules are not too difficult to understand, and once you get the hang of them, you can start playing quite quickly.

Why is blackjack called blackjack?

The game of blackjack is also known as "twenty-one." While the origin of the name "blackjack" is unknown, it is believed to come from the fact that when the game was first created, a player who was able to achieve a score of 21 with an ace of spades and a jack of spades was given a special prize. The name "twenty-one" likely comes from the French word for twenty, which is "vingt."

Is online blackjack rigged?

Online blackjack will not be rigged in any way if the casino is fair and trustworthy.

What is double on blackjack?

The double down in blackjack is when you double your bet in the middle of a hand.