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How to Play Blackjack Online

alexandre fossier
Alexandre Fossier Online casino specialist
Checked by Charlie Stamp
Last updated on March 14, 2025

Blackjack is hugely popular with casino players in the UK, appealing to both beginners and seasoned players. This guide will take you through every aspect of how to play blackjack online in the UK, including understanding the rules, whether you’re a newbie or looking to brush up on your strategy.

Introduction to Online Blackjack

Blackjack, sometimes called “21”, is a popular casino card game where players face a dealer. The goal is to get a hand value closer to 21 than the dealer’s, without going above it.

It has a long history, dating back to the 17th Century. With the emergence of online casinos, it has evolved into an extremely accessible game, allowing players to play from home or on the go.

This easy access, combined with the wide game selection and ability to play on both mobile and desktop devices, have all contributed to its worldwide popularity. The UK makes no exception and is now submerged with incredible amounts of variants, providers, and ways to play blackjack online.

How to Play Blackjack Online – The Basics

The first step for playing blackjack online is, you guessed it, learning how to play the game. This shouldn’t take too long, as blackjack has simple rules, perfect for beginners.

Online Blackjack’s Cards Values

Blackjack is an incredibly simple game: the goal is to get a better hand than the dealer, without going over 21. Each card available in the decks holds a certain value that’ll help players get as close as possible to 21. The different values are as follows:

card values blackjack

What’s a Good Hand in Blackjack?

Considering the goal is to go as close to 21 without exceeding it, the best hand you can get is a blackjack, which is a 10 (or a face card) and an Ace. A 20 is one of the best hands you can get, as it’ll be quite hard for the dealer to beat you. Other good hands are 9, 10 or 11, where hitting a 10, a face card or an Ace can put you in a comfortable position!

However, if your hand is none of the above, there’s no need to panic! There are a few rules players can use to make the most out of any hand. Hitting, standing, doubling down or splitting: mastering these rules and when to use them is the best way to beat the dealer!

Hitting or Standing

When your turn comes, you’ll have the possibility to ask for another card or keep your current hand. Asking for a card is called hitting, while keeping your hand as is called standing. Knowing when to hit or stand is crucial at online blackjack, as it will determine your chances of winning the round.

When Should you Hit?

Your choice to hit or stand will change depending on your own cards and the dealer’s hand. If your total is 11 or below, you should hit as you won’t go over 21. If your total is above that, you’ll need to consider the dealer’s hand. If he’s likely to get a high number (if his first card is high), you should probably hit. On the other hand, if you have a high total and the dealer’s card is low, you might want to stand!

Example of Hitting or Standing:

Player’s hand: 8 + 7 = 15
Dealer’s visible card: 10

In this scenario, the player should usually hit. With a total of 15, there’s a high risk of losing if the dealer’s hidden card is strong. Aim to improve your hand closer to 21 without going over it.

Doubling Down

After receiving your hand (your first 2 cards), you can double your original bet if you’re confident about your chances. This is called doubling down.

When Should You Double Down?

Doubling down is usually useful when your hand has a good chance of becoming a great one with an additional card. In general, you should double down if your total is 9, 10 or 11, without an Ace. If you have an Ace and a total of 16,17 or 18, you can double down as well. However, you should never do it if your hand goes above 11 or if the dealer has an Ace.

Example of Doubling Down:

Player’s hand: 5 + 6 = 11
Dealer’s visible card: 8

With a total of 11, the player has a nice opportunity of receiving one more card and potentially reaching 21 or close to it, while the dealer might end up with a weaker hand. In this scenario, the player should probably double down!

Splitting your Hand

If you land two identical cards, you’re allowed to split them into 2 separate hands, giving you an additional opportunity to beat the dealer’s hand. Your total bet will be doubled, as you’ll need to put the same amount as your original wager on both hands.

When Should You Split?

A good advice is to always split on double 8s and Aces, giving you an opportunity to get 2 strong hands. You can also split 2s, 3s and 7s if the dealer’s hand is between 2 and 7.

Example of Splitting:

Player’s hand: 8 + 8
Dealer’s visible card: 6

In this one, the player should split. Two 8s give you 16, a weak total, but splitting them creates two strong hands with better chances of improving against the dealer’s potentially weaker total.

Dealer’s Rules

In a game of blackjack, the dealer has to follow strict rules and doesn’t make his own choices.

As long as his hand is equal to or below 16, he’ll have to hit, no matter what. If the total equals or exceeds 17, he’ll have to stand.

There’s one special rule to keep in mind: when the dealer gets a soft 17 (an Ace and a 6), hitting or standing can depend on the blackjack variant you’re playing, or directly on what table you’re playing on. Always make sure to check the rules of your table to see if the dealer will have to stand or hit on a soft 17.

Step-by-Step Guide to Playing Blackjack Online

A classic game of blackjack follows a simple structure so that anyone can easily enjoy it. With just a few rules in mind, players can get started and place a few bets to beat the dealer. Let’s take a look at how a game unravels, from cards being dealt to potential payouts.

The Dealer Hands Out a First Round of Cards

After the bets have been placed, the dealer will start off the round by giving each player, including himself, a card. While players have their card face up, the dealer’s card is face down. This card will be revealed at the end of the round.

The Dealer Hands Out a Second Round of Cards

Each player, including the dealer, is given a second card. This time, each card is dealt face up. At this stage, players know their hand and can start establishing their strategy.

Decide What to Do With Your Hand

Once it’s your turn, decide what you want to do with your hand: hit, stand, split, or double down. Try to get as close as possible to 21 without going over it. Once you’re done, wait for all players to finish playing as well. In our example, you got lucky and landed a blackjack (21), while player 2 got over 21, eliminating him from this round.

The Dealer Reveals his Card

After everyone is done hitting or standing, the dealer reveals his face down card. If the sum of his 2 cards is above 16, he’ll have to stand. If it’s 16 or lower, he’s required to hit and gets an additional card. After his turn, you can determine which players have won the round, or if the dealer is the winner.

Bets are Collected or Paid

Once it’s been determined if one or more players have beaten the dealer, the losers’ bets are collected by the dealer and winners get their payouts. If you land a classic win and your bet was £5, your bet is doubled and you now have £10. However, if you win with a blackjack (like shown below), your original £5 increases to £12.50!

Now that you understand how this game works, you can start maximising your odds of winning through some tips and strategies.

Simple Tips for Playing Blackjack Online

Though blackjack is a game of chance, there are a few things you can do to help put the odds in your favor:

These are just a few simple tips that can help you play more efficiently. You can check out our guide about some of the best strategies to win at online blackjack.

Popular Variants of Online Blackjack

There are a handful of blackjack varieties and their specific rule, allowing each player to find its favourite version:

  • Classic
  • European
  • Vegas Strip
  • Atlantic City
  • Spanish 21

The basic version that follows the classic rules of blackjack

In this version, the dealer only receives one face-up card before players complete their hands. It brings another layer of strategy and greed control, making it harder for players to know when to stop hitting.

A variant that is geared towards the best odds you can have, dealing from 4 decks of cards.

This type of blackjack features 8 decks of cards and a number of player-friendly rules, including the dealer standing on soft 17 (if the dealer gets an Ace and a 6, he has to stop there).

This version is basically the same as the classic blackjack, and follows the same rules. The main difference is that 10s are taken out of the decks, meaning a lower chance of hitting 21, but also a lower chance of going above.

Variants Stats & Characteristics

VariantDecksCards/DeckPayouts
(Standard Wins: 1:1*)
House EdgeDifficulty
Classic1-8523:2** for Blackjack≃ 0.5%Easy
European2-8523:2 for Blackjack≃ 0.62%Moderate
Vegas Strip4523:2 for Blackjack≃ 0.35%Easy
Atlantic City8523:2 for Blackjack
Late Surrender Allowed***
≃ 0.36%Moderate
Spanish 216-848 (no 10s)3:1 for 5-card 21
2:1 for 6-7-8 or 7-7-7 combinations
≃ 0.37-0.76%Difficult
* A 1:1 payout means that for a £10 bet, you’ll get your bet back + £10
** A 3:2 payout means that for a £10 bet, you’ll get your bet back + £15
*** Late surrender is a blackjack rule that allows players to forfeit their hand and get back half of their original bet after the dealer checks for a blackjack. It’s called “late” because it happens after the dealer has checked their facedown card.

Each variant brings its own spin to the classic game, so don’t hesitate to give them a try to find your favourite!

Online Blackjack: Live or Virtual?

When playing blackjack online, you don’t necessarily have to get into solo games against the computer. Live options exist and are probably one of the best features available at online casinos. Let’s find out why.

What is Live Blackjack?

Live blackjack bridges the gap between online and land-based casinos by streaming real dealers to your device in high definition. You can interact with the dealer and other players in real-time, making the experience both immersive and social. It combines the convenience of online gaming with the authenticity of a physical casino.

Why Play Live Blackjack?

Live blackjack offers a more dynamic and engaging experience compared to virtual blackjack. Unlike virtual games, which rely on random number generators (RNGs), live blackjack features professional dealers shuffling and dealing cards in real-time. This creates a more authentic atmosphere and enhances trust among players.

Additionally, the social aspect allows you to chat with the dealer and fellow players, bringing the exciting feeling of a land-based casino to your home.

Where to Play Blackjack Online

Now that you’re ready to place a few bets and put our tips to the test, you’ll need to find one of the best online blackjack casinos to play on. For UK players, we recommend trying Casumo or LeoVegas.

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Casumo is perfect for blackjack players, more than 45 different versions and high-quality in-house games. It also offers a great loyalty program for all players, where playing blackjack and other table games helps you level up and earn new rewards such as extra cash.

LeoVegas will be the perfect choice for you if you’re all about live blackjack. It offers more than 60 live tables, each one with its own betting limits and rules. It also has some nice exclusive tables for all types of players, from beginners to experienced ones.

FAQs – How To Play Blackjack Online

What’s the house edge in blackjack?

The house edge depends on the version you’re playing, but typically ranges from 0.5% to 1% when playing with optimal strategy.

What happens if you have the same hand value as the dealer?

If your hand value matches the dealer’s, the round is considered a “push.” In this case, your original bet is returned, and no one wins or loses.

Can you split any pair of cards in blackjack?

You can only split cards of the same rank, such as two 8s or two Kings. Some games may allow you to split multiple times if additional pairs are drawn, but rules can vary depending on the blackjack variant.

What is the difference between a soft hand and a hard hand?

A soft hand contains an Ace valued as 11, such as Ace-6, which can be adjusted to prevent going above 21. A hard hand has no Ace or an Ace valued as 1, like 10-7 or 9-Ace (as 10).

What is the payout in a blackjack game?

In most cases, if you beat the dealer’s hand without exceeding 21, you’ll double your bet. If you beat the dealer by getting 21, your bet is multiplied by 2.5. However, some tables or versions might have different payout policies, so be sure to always check the conditions before playing.