What is RTP (Return to Player)? The Complete Guide

When playing at an online casino, you’ll often see a game displaying an RTP percentage. But what is RTP (Return to Player), and why does it matter?

Understanding RTP can help you make more informed decisions about the casino games you choose to play. While RTP doesn’t guarantee you’ll win, it does provide valuable insight into how much a game is expected to pay back to players over the long term.

In this guide, we’ll explain what RTP means, how it’s calculated, how it differs between casino games, how it compares with house edge, and how you can use RTP to choose games that suit your playing style.

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What is RTP (Return to Player)?

RTP (Return to Player) is the theoretical percentage of all money wagered on a casino game that is expected to be paid back to players over a long period of time.

For example:

• A game with a 96% RTP is expected to return £96 for every £100 wagered collectively by players.
• The remaining 4% represents the casino’s theoretical advantage, known as the house edge.

It’s important to understand that RTP is based on millions of simulated or real game rounds. It is not a prediction of what will happen during a single gaming session.

A player could win much more than the RTP suggests—or lose their entire bankroll—in the short term. RTP only becomes meaningful over a very large number of spins or hands.

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How is RTP Calculated?

Game developers calculate RTP by analysing an enormous number of game outcomes.

Rather than using a handful of sessions, RTP is tested over millions of game rounds to determine the average amount returned to players.

For example:

• Total wagers: £10,000,000
• Total winnings returned: £9,600,000

RTP = (Total Winnings ÷ Total Wagers) × 100

In this example:

£9,600,000 ÷ £10,000,000 × 100 = 96% RTP

Because the calculation uses such a large sample size, actual player experiences can vary significantly over shorter sessions.

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Theoretical RTP vs Actual RTP

One of the biggest misconceptions about RTP is that players will receive the advertised percentage back every time they play.

This isn’t how RTP works.

Theoretical RTP

The RTP shown by a casino or game provider is the theoretical RTP. This represents the expected return after millions of game rounds.

Actual RTP

Actual RTP is what an individual player experiences during their own session.

For example:

• You may win £300 from a £100 deposit.
• You may lose your entire balance.
• You may finish close to the advertised RTP.

All of these outcomes are possible because casino games use Random Number Generators (RNGs), ensuring every spin or hand is independent and random.

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Why is RTP Important?

Knowing a game’s RTP allows players to compare casino games before they start playing.

Generally speaking:

• Higher RTP games are expected to return more money over time.
• Lower RTP games usually generate more revenue for the casino.

Many experienced players prefer games with RTPs above 96%, although RTP should never be considered in isolation.

Other factors such as volatility, jackpot size, bonus features and gameplay are equally important.

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RTP in Popular Casino Games

Different casino games have different RTP percentages depending on their rules and game mechanics.

Slot Games

Online slots typically offer RTPs ranging from 90% to 98%.

Many modern video slots fall between 95% and 96.5%, while a handful of games exceed 97%.

Examples include:

• Blood Suckers – approximately 98% RTP
• Starburst – 96.09% RTP

While high RTP slots may offer better long-term value, they can still produce losing sessions due to variance.

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Roulette

Roulette RTP depends on which version you’re playing.

European Roulette

• RTP: 97.30%
• House Edge: 2.70%

European Roulette has only one zero, making it the better option from an RTP perspective.

American Roulette

• RTP: 94.74%
• House Edge: 5.26%

The additional double zero increases the casino’s advantage, reducing the game’s RTP.

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Blackjack

Blackjack consistently offers one of the highest RTPs in online casinos.

Many versions can achieve 99% RTP or higher, provided players use optimal basic strategy.

However, RTP varies depending on the rules, including:

• Number of decks
• Dealer stands or hits on soft 17
• Blackjack payout
• Double-down rules
• Split options

Small rule changes can noticeably affect the overall RTP.

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Baccarat

Baccarat is another table game known for its strong RTP.

Typical returns include:

• Banker Bet: 98.94% RTP
• Player Bet: 98.76% RTP

The Banker bet offers the highest theoretical return despite the standard commission charged on winning Banker bets.

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High RTP vs Low RTP Games

Higher RTP doesn’t automatically mean a game is “better.”

Instead, it reflects the expected long-term return.

High RTP Games

Benefits include:

• Better long-term expected returns
• Lower house edge
• Often favoured by value-focused players

Potential drawbacks:

• Smaller jackpots
• Less exciting bonus mechanics in some cases

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Low RTP Games

Games with lower RTP percentages may include:

• Progressive jackpot slots
• Highly volatile slot machines
• Feature-heavy games

Although they return less over time, they may offer:

• Larger maximum payouts
• Bigger jackpot prizes
• More frequent bonus features

Choosing between high and low RTP ultimately depends on your personal preferences and risk tolerance.

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RTP vs House Edge

RTP and house edge describe the same concept from opposite perspectives.

RTP measures the percentage expected to be returned to players.

House edge measures the percentage expected to remain with the casino.

For example:

RTP	House Edge
99%	1%
98%	2%
97%	3%
96%	4%
95%	5%

A simple formula is:

House Edge = 100% - RTP

The lower the house edge, the better the theoretical value for players.

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Does RTP Guarantee Winnings?

No.

This is perhaps the most important thing to understand.

RTP does not guarantee you’ll receive a certain percentage of your money back during a single session.

Casino games rely on Random Number Generators (RNGs), meaning every outcome is independent.

As a result:

• You could win a large jackpot within minutes.
• You could lose your bankroll quickly.
• You could experience results close to the theoretical RTP.

Short-term results are heavily influenced by luck and game volatility.

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RTP and Volatility Explained

RTP and volatility are often confused, but they measure different aspects of a game.

RTP measures the expected long-term return.

Volatility measures how often and how much a game pays.

Low Volatility Games

• Smaller wins
• More frequent payouts
• Smoother bankroll swings

High Volatility Games

• Larger potential wins
• Less frequent payouts
• Bigger swings in bankroll

A slot can have a 96.5% RTP while still being highly volatile.

For this reason, it’s always worth considering both RTP and volatility before choosing a game.

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How to Find a Game’s RTP

Most licensed online casinos display RTP information in one of several places:

• Game information menu
• Help or Paytable section
• Game rules
• Casino review pages
• Game provider websites

Always ensure you’re playing at a licensed and regulated casino.

Some casinos may offer multiple RTP versions of the same slot, so it’s worth checking before you play.

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Tips for Choosing Games Based on RTP

If you’re looking for games that offer strong theoretical returns, consider the following tips.

Choose Games Above 96% RTP

Many experienced players look for games with RTPs of 96% or higher, particularly when playing slots.

Compare Different Casinos

The same slot game can sometimes be offered with different RTP settings depending on the casino.

Checking before you play could help you find the better-paying version.

Consider Volatility

Don’t focus solely on RTP.

A high RTP game can still experience long losing streaks if it’s highly volatile.

Explore Table Games

Games like Blackjack, Baccarat and European Roulette generally offer higher RTP percentages than many slot games.

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Responsible Gambling

RTP should never be viewed as a way to guarantee profits or predict future results.

Casino games are designed for entertainment, and every outcome remains random.

Before you play:

• Set a spending budget.
• Stick to time limits.
• Never chase losses.
• Only gamble with money you can afford to lose.
• Use deposit limits, reality checks and self-exclusion tools if needed.

If gambling stops being enjoyable or starts affecting your finances or wellbeing, seek support from recognised responsible gambling organisations in your region.

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Frequently Asked Questions

What is RTP in online casinos?

RTP (Return to Player) is the theoretical percentage of all wagers that a casino game is expected to pay back to players over millions of plays.

Is a higher RTP always better?

Generally, yes. A higher RTP means a lower house edge and better long-term expected returns. However, volatility, jackpots and bonus features should also be considered.

What is considered a good RTP?

Many players consider 96% or higher to be a good RTP for online slot games, while table games like Blackjack and Baccarat often exceed 98%.

Can casinos change RTP?

Some game providers offer multiple RTP versions of the same game. Licensed casinos may choose which approved version to offer, making it worthwhile to check a game’s RTP before playing.

Does RTP guarantee I’ll get my money back?

No. RTP is a long-term statistical average and does not predict or guarantee the outcome of any individual gaming session.