In the ever-evolving world of iGaming, players encounter a plethora of terminology. One term that crops up and holds immense significance for players is “RTP”. Understanding what RTP means is crucial for making informed decisions while playing slots and other casino games. In this guide, we’ll break down the concept of RTP, explain its significance, explore how it’s determined, calculate it, and even delve into its relationship with volatility.

What Does RTP Mean?

Breaking down the basics, RTP stands for ‘Return To Player’. This term indicates the percentage wagered on an online casino game given back to the player over a certain period. For example, if a game has an RTP of 97% and the player has a bankroll of £100 to wager, theoretically, £97 should be won back by the player. However, although this can give some relative indication of how a game operates, it is worth noting that RTP percentages are purely long-term statistics rather than guaranteed results.

How Is RTP Determined?

RTPs are set by the game’s developers and based on complex mathematical algorithms. Developers factor in the game’s pay table, the frequency of winning combinations, and the potential payouts for different combinations. They also consider factors such as bonus features and other gameplay modifiers that could impact the overall player experience. Once again, though, the RTP is completely theoretical, so bear that in mind!

How Do You Calculate RTP Of a Slot?

Your chosen online casino should automatically list the RTPs of the games they house on their sites. If not, you can calculate the RTP of a slot yourself using a simple formula:

(Total amount returned to players / Total amount wagered by players) x 100 = RTP

However, it’s worth noting again that this involves extensive data collection in order to get accurate calculations. Despite this, checking the RTP of a slot before playing is one of the ‘Best Online Slot Tips‘ we touch upon in our fittingly named article.

Can Volatility Affect RTP Of a Slot?

In the simplest of terms, yes! Also known as variance, volatility refers to online casino games‘ risk and reward profiles. For example, if a title has high volatility, wins are theoretically less frequent (although larger), whereas low volatility slots tend to have more frequent wins but of a lower value. These two factors can potentially affect gameplay; hence, they also tie into determining a title’s RTP.


Understanding RTP can help players gain valuable insight into the mechanics of online slots, leading them to make more informed decisions when selecting their games. As you explore the world of online casino games, keep an eye out for the RTP values developers provide, as they offer a glimpse into how a game could theoretically play out.

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