What Does RTP Stand For?
RTP stands for Return to Player. It's a percentage that represents how much of the total money wagered on a slot game is theoretically paid back to players over a very large number of spins. For example, a slot with 96% RTP would, over millions of spins, return £96 for every £100 wagered in total.
RTP Is a Long-Term Average — Not a Session Guarantee
This is the most important point to understand: RTP is calculated over an enormous number of spins — often hundreds of millions. In any single session, your results will vary dramatically. A 96% RTP slot does not mean you'll get £96 back from every £100 you spend in one sitting. You could win big, or you could lose your entire balance quickly.
Think of RTP as a measure of the game's overall generosity, not a prediction of your personal result.
How RTP Relates to House Edge
The house edge is simply the flip side of RTP:
| RTP | House Edge |
|---|---|
| 99% | 1% |
| 96% | 4% |
| 94% | 6% |
| 88% | 12% |
Higher RTP = lower house edge = better theoretical value for the player.
What Is a "Good" RTP for a Slot?
- 96% and above: Generally considered good. Many top online slots fall in this range.
- 94%–95.99%: Average. Acceptable but not exceptional.
- Below 94%: Lower value. Worth being aware of, especially if you play frequently.
Land-based slot machines often have significantly lower RTPs than their online counterparts, sometimes falling in the 80–88% range.
RTP vs. Volatility: Two Different Things
Many players confuse RTP with volatility — but they measure completely different things.
- RTP tells you how much is returned over the long run.
- Volatility (or variance) describes how wins are distributed — frequent small wins (low volatility) vs. rare but large wins (high volatility).
A high-volatility slot can have excellent RTP but still drain your bankroll quickly in a short session. A low-volatility slot with a slightly lower RTP might give you more consistent playtime.
Where to Find a Slot's RTP
- In-game paytable or info screen: Most modern slots display RTP in the game rules or help section.
- Developer's official website: Reputable developers like NetEnt, Pragmatic Play, and Microgaming publish RTP figures for all their games.
- Casino's game information: Regulated online casinos are often required to display RTP for each game.
Can Casinos Adjust RTP?
Some game developers allow casinos to choose from a range of RTP settings (e.g., 94%, 96%, or 97%). This means the same slot title could theoretically run at different RTPs on different platforms. This is why it's worth playing at reputable, regulated casinos that are transparent about their settings.
Key Takeaways
- RTP is a long-term theoretical figure, not a per-session guarantee.
- Look for slots with 96%+ RTP for better theoretical value.
- Always consider volatility alongside RTP.
- Check the paytable or developer site to confirm a game's RTP before playing.