What Are the Odds of Winning Online Slots?

In the opinion people of some, the odds of ever winning any money when playing online slots are ridiculously long, however they’d be wrong. While we know that not everyone will walk away a winner, the best slots still give players a fair chance of turning a profit – and this profit can sometimes be absolutely massive.

But how do you know how much chance you have of winning when playing slots online? And is there anything you can do to increase your chances when you play? You’ll find out the answers to both these questions when you continue reading below…

What Are the Odds of Winning Online Slots?

Explaining RTP

So, how do you work out your odds of winning money when playing an online slot machine? Well, there’s no exact way, but it is a good idea to take a look at the RTP – which stands for Return to Player. This number will let you know, on average, how much money you will win back when you play.

For example, a slot could have an RTP of 97%. This would mean that, over the course of a very long period of time, you should win 97% of your money back. Of course, over a shorter time though, this isn’t guaranteed. If someone bet £10 and managed to win £10,000, a lot of other people would have to lose their money in order to balance out the RTP again.

So, the important thing to remember is this: the odds of winning money increase when you play a slot with a higher RTP. This is actually the case with all games, including roulette, blackjack and video poker. You’ll find the RTP of a slot displayed somewhere at a site, usually in the links near the bottom of the page.

Affecting Your Chances of Winning

We’ll start this section by saying one thing: there is no way to guarantee that you’ll win money while playing an online slot machine. There are some scam artists online that will try to tell you different, however they’re simply lying, in order to get your money. Slots are a game of chance, and only luck dictates whether you’ll spin in a win or not.

There is sometimes one way to improve your odds of winning though, and it’s by betting bigger. There are some slots out there that will open up extra features to those betting bigger, and these extra features can increase the game’s RTP. One example of this would be the Big Bet feature found in some Barcrest games, including some in the Rainbow Riches franchise.

You’ll also find that your chances of winning a progressive jackpot can increase when placing larger bets. In fact, some progressive slots will only allow you to win the top prize when betting at the very highest stakes. Due to this, you should always check the rules surrounding a progressive jackpot game before you start playing.


So, overall, it’s not really possible to tell you the exact odds of winning when playing a slot machine. You can improve your chances by playing games with higher RTPs though, plus you should always check out your bet size as well, as increasing it could boost your chances of making some money.

Stephen Addington (PhD, MSc, BSc)

Researcher and expert in applied mathematics covering the areas of combinations, configurations, probabilities and games of chance within slots machines. Consultant to various gaming developers and suppliers. Published author and speaker. You can read more about Stephen on my author profile page