What Is RTP (Return to Player)?
Return to Player, commonly abbreviated as RTP, is a percentage that describes how much of the total money wagered on a casino game is paid back to players over time. It is one of the most fundamental concepts in online gambling and a critical figure for any informed player to understand.
For example, if a slot machine has an RTP of 96%, it means that — theoretically — for every £100 wagered, the game will return £96 to players over a very large number of spins. The remaining 4% represents the casino's profit margin, known as the house edge.
How Is RTP Calculated?
RTP is calculated by game developers and independent testing laboratories over millions of simulated game rounds. The formula is straightforward:
RTP = (Total Amount Returned to Players ÷ Total Amount Wagered) × 100
It is important to understand that RTP is a long-term statistical average, not a guarantee of what you will win in a single session. The actual returns any individual player experiences will vary significantly from the stated RTP.
Why Does RTP Matter?
RTP matters because it gives you a baseline for comparing games and understanding how favourable a game is to players. Here's why you should always check the RTP before playing:
- Better value for money: Higher RTP games return more to players over time, stretching your bankroll further.
- Informed game selection: You can compare games side by side and choose those with better statistical returns.
- Understanding house edge: RTP and house edge are two sides of the same coin. A 96% RTP means a 4% house edge.
- Avoiding poor-value games: Some games have RTPs as low as 75–85%, which are significantly less favourable to players.
What Is a Good RTP?
As a general benchmark, here is how to interpret RTP ranges in online casino games:
| RTP Range | Rating | What It Means |
|---|---|---|
| 98%+ | Excellent | Very player-friendly; very low house edge |
| 96%–97.99% | Good | Above industry average; solid choice |
| 94%–95.99% | Average | Typical for most online slots |
| 90%–93.99% | Below Average | Higher house edge; approach with caution |
| Below 90% | Poor | Very high house edge; avoid if possible |
RTP vs. House Edge: What's the Difference?
These two terms are directly related. House edge is simply 100% minus the RTP. A game with a 96% RTP has a house edge of 4%. Both describe the same mathematical relationship — one from the player's perspective and one from the casino's.
Where Can You Find a Game's RTP?
Most reputable online casinos and game developers publish RTP figures. You can usually find them:
- In the game's information or help section (often a small "i" icon in the game interface)
- On the game developer's official website
- In independent review sites and gaming databases
- In the casino's terms and conditions or game library information pages
Key Takeaways
RTP is your single most useful tool for evaluating the value of a casino game. Always look for games with RTPs of 95% or higher, understand that RTP is a long-term average and not a session guarantee, and use it alongside volatility ratings to choose games that match your playing style and budget.