What Is RTP? Return to Player Explained

Return to player (RTP) is the expected percentage of money staked that a game returns as prizes over a large number of plays. It describes a game’s mathematical return, not a refund, a promise about your session or your chance of winning a particular spin.

How to calculate RTP and house edge

For a game with a fixed theoretical return, RTP equals expected prizes divided by stakes, multiplied by 100. The corresponding house edge is 100% minus RTP. A game with 96% theoretical RTP therefore has a 4% theoretical house edge.

Suppose total stakes across a sufficiently large set of plays were £10,000. At 96% RTP, expected total prizes would be £9,600 and the expected difference would be £400. Those are mathematical expectations: actual results can differ, especially across a small sample.

Total stakes are different from your deposit

RTP applies to every wager, including money won and then wagered again. Depositing £20 does not limit turnover to £20. If you repeatedly stake winnings, your cumulative wagers can exceed your deposit. A hypothetical £500 of turnover at a 4% house edge has an expected cost of £20; it does not guarantee a £20 loss or prevent a larger loss.

RTP is not the frequency of winning

A 96% RTP does not mean that 96 out of 100 spins win, or that you will recover £96 from a £100 deposit. Win frequency and the size of prizes affect how results are distributed. A game can have frequent small wins while still producing an expected loss.

RTP and volatility describe different risks

Volatility describes variation in game results. Two games with similar theoretical RTP can produce very different sequences of prizes. Neither a high RTP nor low volatility makes a casino game a reliable source of income.

For an independent random game, earlier wins and losses do not make the next outcome due. Changing your stake or playing longer does not remove the house edge. Increasing turnover generally increases the amount exposed to that edge.

Where to check a game’s RTP

Look in the game’s help, rules or paytable before playing. Check the version offered by the operator: do not assume a percentage quoted for another version or website applies. If the information is unclear, ask the operator before wagering.

The Gambling Commission’s RTP explanation distinguishes long-run returns from individual sessions. Its game-information standards explain the information operators must make available.

Related guides

Read about house edge, slot volatility and setting safer gambling limits. Set a spending limit you can afford to lose, and stop when you reach it.