Knowing how much a slot might pay out on average plays an important role in making informed decisions when choosing games at online casinos. This payout rate is commonly known as RTP, or ‘Return to Player’, and is usually expressed as a percentage for each slot.
Many players aren’t entirely sure what RTP means or how to find this information before starting a game. Understanding RTP can help set realistic expectations and guide you in selecting slots that suit your preferences and budget.

Payout percentage, often called RTP, is the average amount a slot may return to players over a long period. It is expressed as a percentage, for example, 95% or 99%.
If a game has an RTP of 95%, this means that, in theory, for every £100 staked, the slot could pay out £95 across many spins. That calculation is based on a very large number of plays, usually thousands or millions, and indicates long-term return rather than short-term results.
Individual sessions can differ widely from the RTP figure. Each spin is determined by Random Number Generator (RNG) technology, so every outcome is independent and cannot be changed or predicted by players.
Because results are random, RTP should be treated as a long-run statistical average, not a guarantee of what will happen in any single session.
Understanding RTP gives you a clearer idea of how a slot might perform over time. The RTP figure helps set realistic expectations about returns relative to the amount you wager if you choose to play.
RTP can be a useful factor when deciding which slots to try. Generally, games with higher RTP percentages tend to pay back more over a large number of spins than those with lower percentages.
However, RTP is only one part of the picture and does not guarantee any specific outcome. It is an average calculated over many sessions and many spins, not a prediction for any individual session.
To check a slot’s RTP, follow a few simple steps.
Most online casinos display RTP in the game’s details or help section. Look for an “i” icon or a help button on the slot screen to view information such as paylines, bonus features and the RTP percentage.
Sometimes RTP is shown directly in the game lobby. If you cannot find RTP on the casino platform, visit the slot developer’s website, as many providers list RTP for each game.
For land-based slot machines, RTP may be in the machine’s manual or printed near the screen, though it is often less obvious than online. If the information is not visible, ask staff or check the venue’s official site for assistance.
Because RTP can appear in different places, taking a few moments to search can make your choice clearer when selecting a slot.
A “good” RTP is generally any figure above the usual range for online slots, which typically falls between 85% and 96%. Around 95% is often regarded as the standard benchmark.
Slots with an RTP of 97% or higher are commonly described as high RTP slots. Players who look for these games expect, based on long-term statistics, that they will return a larger share of stakes over many spins.
These percentages are calculated over a very large number of spins, so results in any single session can still vary widely. RTP is a useful factor to consider, but it is only one part of your choice; personal preferences and sound money management are equally important.
Many online casinos offer slots with higher RTP rates than you might find in most land-based venues. This means, over time, online slots may return a larger share of stakes to players.
A common reason is lower operating costs for online games compared with physical machines. Some online games display RTPs of 95% or more, while those in brick-and-mortar venues might show lower figures.
RTP can still vary significantly between games, even on the same site. Check the official RTP for each slot before you play, and manage your budget carefully.
Though RTP plays a key role, several other factors shape how much a slot can pay out over time.
Volatility: Volatility describes how often and how large a slot’s payouts tend to be. High volatility slots can produce larger wins but do so less frequently. Low volatility slots usually deliver smaller, more frequent wins.
Bonus Features: Features such as free spins, multipliers and bonus rounds can change when and how wins are awarded, affecting overall return patterns.
Paylines and Bet Sizes: The number of paylines you play and the stake per spin both influence potential returns. Playing more lines and staking more increases the number of ways to win but raises the cost of each spin.
RNGs: Each spin is determined by a random number generator, so individual outcomes are entirely random and independent of previous spins.
Consider all of these elements alongside RTP when choosing a slot, so your choice is based on how the game behaves rather than on a single figure.
At O’Reels, we offer a broad range of online slot machines, each featuring clear RTP details so you can make more informed decisions before you start playing.
As a fully licensed and regulated site under the UK Gambling Commission (UKGC), we prioritise fairness, safety, and responsible gaming at every step. To support responsible play, we also provide a variety of tools and resources that allow you to set limits and manage your gaming experience.
If you want a straightforward way to explore online slots with transparent information and responsible features, feel free to visit O’Reels and see the games we have available.
**The information provided in this blog is intended for educational purposes and should not be construed as betting advice or a guarantee of success. Always gamble responsibly.