Online Casino RTP Explained: What It Means and Why It Matters
Picture the scene: you’re playing a popular slot like Starburst, Book of Dead, or Big Bass Bonanza at one of your favorite online casinos, but you just can’t seem to get lucky. Even if the game has lots of special features, you might not find yourself winning. And why is that? Well, the RTP of the slot might be to blame.
RTP stands for Return to Player and it’s expressed as a percentage. Each game comes with built-in RTP which is calculated over a long period of time and if you’re playing at licensed online casinos, the RTP is always independently verified by third parties. When you understand RTP and how it works, you’re already at an advantage compared to the average player, so we’re going to explain exactly what this figure means and how you can find it for each game.
Are you ready to have online casino RTP explained in full? We’re going to tell you exactly how to find the RTP of games, what good RTP looks like and how to spot a legit casino that reports on RTP correctly.
TL;DR – RTP (Return to Player)
- RTP is the percentage a game pays back over time (e.g. 96% RTP returns $96 per $100 wagered) and is set by developers and verified independently.
- Online slots typically offer higher RTPs (94–98%) than land-based casinos, while table games like blackjack can exceed 99% with optimal play.
- RTP does not guarantee short-term results; outcomes are random, vary by casino version, and work alongside volatility and hit frequency.
Table of Contents
- What Is RTP in Online Casinos?
- What Is a Good RTP for Online Casino Games?
- Online vs. Land-Based Casinos: Why RTP Differs
- RTP vs. Volatility vs. Hit Frequency: The Three Variables That Define a Slot
- Does RTP Change Between Casinos for the Same Game?
- How RTP Is Set and Who Verifies It
- How Bonus Features Affect RTP
- Common RTP Myths Debunked
- RTP at Sweepstakes and Social Casinos
- How to Use RTP to Choose the Best Online Casino Games
- Final Thoughts on Online Casino RTP
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What Is RTP in Online Casinos?
As we mentioned, RTP stands for Return to Player, and it’s essentially how much the specific slot game will pay out over a long period of time. To give you an example, if a slot has an RTP of 96%, it would be expected that for every $100 wagered, about $96 should return to players. The rest is known as the “house edge”, which is the profit the slots sites keep after wins have been paid out. In this example, the house edge is 4%, or $4 for every $100 wagered. RTP and house edge provide the same information, just in a different way.
The thing to remember about RTP is that even if it’s high on a certain game, that doesn’t guarantee that you’ll get a payout during a particular gaming session. RTP is calculated over a very long period of time (think millions of spins), so short-term results can vary widely.
The house edge can begin to compound over time, for example, if you bet $100 and get $96 back, then bet your $96, you could end up with $92.16, and this could continue until you don’t have any money left, so bankroll management is essential, even on the highest RTP slots.
A lot of players come to me frustrated after a losing session on a 96% RTP slot, and the first thing I tell them is that the number isn't a promise, it's a long-term average across millions of spins. Once you understand that, you stop chasing and start playing smarter.
What Is a Good RTP for Online Casino Games?
It’s fair to wonder if the RTP on your game of choice is considered “good”. This is an important question to ask before you start to play. The range for all games tends to fall between about 94% and 98%, although there are some outliers on either side. For example, progressive slots tend to have lower RTP than other games, even though they can hold huge potential payouts.
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Knowing which games have higher RTP will help you decide which slots to play. Keep in mind that table games and live casino games also have variable RTP, with strategic card games like blackjack being on the higher end.
- Excellent (98%+)
- Good (96–98%)
- Average (90–96%)
- Poor (<90%)
| Online Casino Game | Typical RTP | Details |
|---|---|---|
| Blackjack (optimal play) | 99%–99.5% | Skill-dependent; strategy required |
| Video Poker (full pay) | 98%–99.5% | Strategy-dependent |
| Baccarat | 98.9% (banker) | One of the most player-friendly table bets |
| European Roulette | 97.3% | Single zero; lower house edge |
| Online Slots | 94%–98% | Varies by developer and title |
| American Roulette | 94.7% | Double zero increases house edge |
| Progressive Slots | 92%–96% | Lower base RTP funds the jackpot pool |
| Penny Slots | 86%–93% | Higher house edge on small denominations |
| Keno | 75%–85% | Among the lowest RTPs in any casino format |
RTP figures are approximate and may vary by platform and jurisdiction.
Most of the best slots games have an RTP of 96% or more, as 96% is considered the industry average for slots. Finding out the RTP of a game is quite straightforward: some of the best online casinos have a dedicated page (usually accessible via the footer of the site or the help centre) where you can find the RTP for all games, but if your preferred casino doesn't have that, you can open up the game info and scroll or click through until you see the game’s RTP.
Online vs. Land-Based Casinos: Why RTP Differs
To have online casino RTP explained to you in full, we need to talk about the differences between land-based and online games. In general, online slots and other games have higher RTP than their land-based counterparts. Online slot RTP usually ranges between 94% and 98%, whereas if you head to a land-based casino it can be as low as 88% to 94%.
There are several reasons for this, the most obvious being the lower operating costs for online casinos. They save on floor space, physical game machines, and large amounts of staff, so there’s more money leftover for the casino to award as wins. There are also thousands of online casinos out there, so players are spoiled for choice. You’re more likely to go to a site that has games with higher RTP, so this can be seen as a real competitive advantage.
In the US and other regulated markets, licensed casinos need to clearly publish RTP figures. For example, at Pennsylvania online casinos, you’ll be able to find the RTP of each game very easily. This isn’t the case at land-based casinos in most jurisdictions, so it’s much easier for them to offer games with lower RTP.
RTP vs. Volatility vs. Hit Frequency: The Three Variables That Define a Slot
If you’re a keen online casino player, you probably know a bit about RTP and volatility already, but there’s a third stat that’s almost as important: hit frequency. This refers to how often a spin on a game produces a winning combination, regardless of whether it’s a large or small win.
If, for example, a game has an RTP of 96% and a high hit frequency, it might still only return small wins and lead to the loss of most of your bankroll relatively quickly. On the other hand, a game with the same RTP, lower hit frequency and higher volatility could produce bigger wins, even if you have to wait a while for any winning combinations to land.
We’ve put together a little cheat sheet, which you can use to decide which combination of RTP and volatility works for you.
| RTP | Volatility | Best For |
|---|---|---|
| High | Low | Stretching free spins, meeting bonus wagering requirements |
| High | High | Jackpot hunting, larger bankrolls |
| Low | Low | Casual, entertainment-focused play |
| Low | High | Avoid — worst combination for most players |
RTP and volatility ratings are generalisations; individual games vary.
If you’re going to be using any online casino promo codes or bonuses, it’s a good idea to look for games with high RTP and low volatility. This gives you the best possible chance of maximizing the bonus while standing a chance to get some real wins. Just remember to check if any very high RTP games are excluded from the promo.
Does RTP Change Between Casinos for the Same Game?
Put very simply, yes, the RTP of a game can change between different casinos. This is because game studios often produce multiple different variations of a game, for example one with standard RTP and one with higher RTP (e.g. 98%).
The online casino can then decide which one they want to offer. This is important, because if you spend $100 on a 95% RTP version of the game, you could be coming out with $95, whereas on the 98% RTP version, it could be closer to $98. The difference is clearly the more you spend on the game.
Remember, all RTP variations need to be certified and you’ll easily be able to see the RTP of the game you’re playing, by checking the game info section. It is, however, unlikely that a casino will explicitly say whether they’re running the higher or lower RTP version of the game. This is where you might need to do a little bit of your own research, for example by checking the game developer’s website. You can use the RTP percentages of the different games, along with other features like bonuses, to decide which casino site you want to use.
What most players don't realize is that the same slot can pay out differently depending on which casino version they're playing. Always check the game info before you spin, a 2% RTP difference might sound small, but over a session it adds up fast.
How RTP Is Set and Who Verifies It
We’ve already told you that RTP is a set figure for each game, but how exactly is it set and verified?
Firstly, the game developer sets the RTP. For example, if you’re playing a slot by NetEnt or a live casino game by Evolution, they’re the ones who decide the RTP of the game. The good news is that the developers can’t simply change the RTP without issuing a brand new version of the game.
Once the RTP has been set, independent auditors verify that the games are fair and random and that the RTP is as the developer has stated. They simulate millions of spins, to make sure the game pays out as expected. You can look out for certificates from bodies like eCOGRA, iTech Labs, and GLI, which confirm the RTP of online casino games. These are usually available in the footer of the site, but if they don’t link to a real certificate, that’s a red flag that they could be fake.
It’s important to note that online casino regulators can set minimum RTP levels for all casinos in their jurisdiction. While the UK Gambling Commission doesn’t set a minimum, other regulators like the Michigan Gambling Control Board do. If an online casino is seen to be breaching these regulations, the regulator can investigate and potentially penalize the casino.
At Michigan online casinos, the RTP of any game has to be at least 80% and no more than 100%. This accounts for games like blackjack, where player skill can influence the RTP of the game - even at the lowest skill levels, it needs to be 80%.
In New Jersey, the minimum RTP for all slot machines is 83%, and in Pennsylvania, it’s 85%. West Virginia online casinos, on the other hand, don’t have a published minimum. It’s 80% for in-person video lottery terminals, but online slots aren’t covered.
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How Bonus Features Affect RTP
The RTP of a slot or table game covers the game in its entirety, including the base game and bonus features. But the RTP can vary a little within the bonus game, or if you’re using features like bonus buy (if available in your region).
The base game RTP allocation is the amount of money returned through normal gameplay. If this allocation is higher, it means that the game pays more during the base game (rather than during bonus features), which can make play feel more stable and less liable to bankroll erosion.
The rest of the RTP is allocated to the bonus features, like free spins or repins rounds. It’s important to watch out for slots that have a high RTP in the bonus round only, as the base game probably won’t pay out as much and you might not even get lucky enough to trigger the bonus. Some providers like Pragmatic Play disclose the RTP of the bonus round within the game info, so it’s easy to check.
When you play progressive jackpot slots, things are a little different. A small percentage of each stake goes towards increasing the jackpot prize, which is why the base game RTP is generally lower than on other games. On the other hand, if you add the percentage jackpot contribution (usually between 2% and 5%) to the base game RTP, you’ll get a much higher number. But you’re unlikely to achieve that as the big jackpot prizes don’t trigger often. If you’re claiming a casino bonus like a 500 free spins offer, it’s important to understand that the RTP of the free spins is the same as on real money spins. The only difference is that high RTP games are often excluded from contributing towards wagering requirements
Common RTP Myths Debunked
Now that you’ve had online casino RTP explained to you, let’s bust some common myths so that you never get caught out.
| Myth | True or False | Details |
|---|---|---|
| A slot is 'due' a win after a long losing streak | False | Thanks to Random Number Generator technology, every single spin is independent and they all have the same chance of paying out a win. Remember, RTP is calculated over a very long period of time, so there's no guarantee a game will pay out at all during your session. |
| Higher bets improve your RTP | False | The RTP is always the same, no matter how much you stake. Higher bets could simply lead to losing more of your bankroll faster. The only minor exception is that some progressive games are more likely to trigger a jackpot round when you place bigger bets. |
| Playing at certain times of day improves RTP | False | There's no such thing as a slot that pays out more in the morning or the evening. The RTP is a set rate and it's exactly the same no matter when you play. The RTP is coded into the game when it's developed, so it's not something the casino can control on a whim. |
| Casino apps have lower RTP than desktop | False | Licensed online casino apps use the exact same games as their desktop counterparts, so there's absolutely no way the RTP of any of the games can be different. The platform, browser or device you're using doesn't have any impact on the game RTP at all. |
| Demo mode has a different RTP than real money | False | Demo versions of games work in exactly the same way as real money versions, so the RTP is the same. No matter whether you're playing in demo or real money mode, it's always difficult to get a good feel for the RTP within a short session. |
RTP at Sweepstakes and Social Casinos
Sweepstakes casinos operate outside of the usual online gambling regulations, because there’s no real money element. That means that they’re not held to the same audit and RTP standards as real money gambling sites. But if you’re playing a slot from a provider like Play’n GO, Games Global, or Hacksaw Gaming, the RTP doesn’t change between the real money and social version of the game.
It’s a good idea to approach social casinos in the same way that you would real money gambling sites. Vet each one by looking at the RTP of the different games and making sure that player reviews are positive. The best thing you can do is to look for games by known providers, where the RTP is clearly published.
Even if you’re playing at a social casino, if you can’t find the RTP of a game, that’s a red flag. You can top up your GC balance using real cash, so you definitely don’t want to be spending your money on unreliable games, which might have very low RTP.
How to Use RTP to Choose the Best Online Casino Games
- Find the RTP before you spin: All trustworthy online casinos should make it easy for you to find the RTP of a game - if a site hides game RTP, it’s an immediate red flag. You can check the game info once you’ve opened up a specific game, or look for a page dedicated to listing the RTP of all the games.
- Compare the same game across casinos: Some game providers create multiple versions of a game, with different RTP levels, for example 96% vs 98%. It’s up to each gambling site which version they want to offer. This is more common with games where the max RTP is very high: top online casinos are likely to have the higher RTP version, but more standard sites might have one with lower RTP.
- Match RTP to your bonus type: Highest RTP slots with low volatility make it easier to meet wagering requirements when you’re using promos like free spins. But be careful: a lot of online casinos exclude very high RTP slots from bonus gameplay, so be sure to check the T&Cs thoroughly before you play.
When my friends are working through a welcome bonus, I always steer them toward high RTP, low volatility games. It gives you the best shot at meeting wagering requirements while still having fun. Just make sure to read the T&Cs, because high RTP titles are often the first ones excluded.
- Evaluate progressive slots separately: You shouldn’t choose a progressive jackpot slot based on the RTP alone. Remember, progressive games tend to have lower RTP than other slots, but there’s always a chance you’ll bag the big jackpot. Just check the top payouts and make sure that they’re worth the lower RTP.
- Use casino apps the same way: Licensed online casino apps have exactly the same RTP as the main desktop website. Just because you’re using a different platform, doesn’t mean that the game pays out in a different way. The good news is that casino apps these days usually offer all the same games as the desktop site.
- Scrutinize new casinos: New online casinos don’t have the same reputations as older sites, so it’s even more important to make sure they’re legit and that the RTP is clearly reported. Look for certificates from independent bodies like eCOGRA or iTechLabs, which will tell you that the games have been audited for fairness. Also look for game providers that you’re already familiar with, like NetEnt and Pragmatic Play.
- Cross-reference expert reviews: It’s always a good idea to read reviews on independent review sites. You can find reviews of the best online casinos to make sure that they report on RTP correctly and that the games are certified for fairness, or read more about individual games, to see how other real players have found the experience.
Final Thoughts on Online Casino RTP
While RTP gives an indication of how well a slot pays out in the long run, it’s never a guarantee of a win. But by looking at the RTP percentage of a game, you can get a good idea of your long-term winning potential (as verified by independent auditors), and licensed online casinos make this information readily available before you start playing.
As wins are never guaranteed when you gamble online, you should only ever play for entertainment and don’t chase losses.If you need any extra support, you can reach out to a resource in your area for help.
Online Casino RTP FAQ
What does RTP mean in online casinos?
RTP or Return to Player percentage is the amount of money wagered on a game that should return to players over a long period of time. RTP is calculated over millions of spins, so just because a game has high RTP, doesn’t mean you’ll land a win during a single session.
What is a good RTP for online slots?
Can online casinos change a game's RTP?
Does the same slot have different RTPs at different casinos?
How do I find the RTP of a specific slot game?
What is the difference between RTP and volatility?
Do progressive slots have lower RTP?
Why do online slots have higher RTP than land-based slots?
Are free spins affected by RTP?
Does bet size affect RTP?
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