Important: neither RTP nor volatility makes an outcome predictable or turns gambling into a reliable way to earn money.
RTP describes long-run prize return
Return to player (RTP) is a theoretical percentage of stakes returned as prizes over a very large number of plays. A game’s displayed RTP does not promise that an individual will receive that percentage back, and a short sample can differ substantially from the theoretical value.
Volatility describes variation in outcomes
Volatility is about how widely outcomes can vary around their average. In broad terms, a lower-volatility game may distribute outcomes in smaller, more frequent amounts, while a higher-volatility game may have more variation, with larger prizes less frequent. These descriptions are general: the exact distribution depends on the game.
Can two games have the same RTP?
Yes. Two games can share a theoretical RTP while having different prize distributions. One could produce smaller prizes more often; another could produce a wider spread of outcomes. Their long-run average may be similar even though individual sessions can feel very different.
What neither measure tells you
- Whether you will win on the next play.
- How much you personally will receive in a session.
- Whether a losing streak makes a win more likely.
- Whether a game is suitable for your finances or wellbeing.
Do not interpret volatility as a strategy or a signal to increase stakes. Random outcomes remain uncertain, and losses can occur at any level of volatility.
How to read game information responsibly
- Find the information for the exact game version, not a similar title.
- Read the full game rules and any explanation of RTP or volatility.
- Check whether a figure is theoretical or based on a particular observed sample.
- Do not compare values from different sources unless the definitions and scope match.
- If you choose to gamble, set a limit you can afford to lose and stop when you reach it. Do not chase losses.
Primary-source reading
The UK Gambling Commission’s RTP calculation guidance explains how actual RTP is calculated from prizes and turnover, and why volatility matters when interpreting results. It is a technical source for the products within its remit, not a universal rule for every market.
Quick comparison
- RTP: a long-run percentage of stakes returned as prizes.
- Volatility: a measure of how widely outcomes vary around the average.
- Probability: the chance of a defined event occurring.
These concepts are related, but they are not interchangeable. Check the underlying game rules instead of relying on a headline label.
Editorial source check: 21 October 2026. This page is general education, not legal, financial, or gambling advice. Rules and game information can differ by product and jurisdiction. Check current primary sources before relying on any claim.
For a related explanation of independent events and why streaks do not predict the next result, read our guide to random outcomes and past-result patterns.