What is RTP?

If you’ve ever spun the reels of an online slot machine, you’ve most probably come across the term RTP. Even if you’re not entirely sure what it means, the return to player percentage (RTP) is an important factor when it comes to casino gaming.

To fully understand just how important RTP rates are, all you really need to know is that they are strong indicators of the profit margins enjoyed by gambling houses. To get an idea of an individual casino’s margin for a particular game, you simply need to subtract 100% from its RTP rate.

RTP is a percentage indicating the amount of money you could win on a casino game

What Does Return to Player (RTP) Mean?

You may well be wondering what return to player means. Well, in simple terms, the casino RTP meaning represents the average amount of money that online slot machines or casino table games pay back (or return) to the player over an extended period of time. Displayed as a percentage, the casino RTP meaning is the opposite of the house edge, which denotes the mathematical advantage of a casino game.

To further explain the meaning of casino RTP, let’s use the popular Mega Moolah slot machine game as an example. With a return percentage of 88.12%, we would expect the game to pay out an average of £88.12 for every £100 wagered. However, don’t forget that the return to player rate is based on millions of spins, so by no means should you expect to always get back £88.12 in winnings for every £100 you bet. True, you may well hit a winning streak and make a profit but similarly you may equally experience a spate of bad luck and win nothing.

While a slot machine’s return to player percentage is not the most accurate measurement, it is an excellent indicator of how much money a game could pay out. Players can still have tons of fun and potentially secure wins with a low RTP game, but your funds will probably go further if you play a casino slot machine with a high return to player percentage.

How to Calculate the Return to Player Percentage?

Calculating the RTP percentage is much more straightforward than you might think. You simply divide the overall amount won by players on a particular game by the total amount they have bet. You may be surprised to discover that the figure isn’t calculated on the history of a specific game. Rather, it is determined by computer algorithms that spin the reels or play rounds hundreds and thousands of times during a specific period. This provides the most accurate measurement while still replicating the experience of countless casino players.

However, the return to player percentages of certain casino games are slightly more challenging to calculate. In table games like roulette and blackjack, the RTP depends on the wagers or betting strategies employed by players. For example, in blackjack, a highly skilled game, inexperienced players who get higher hand totals can bring down their own return percentages. Take a look below at the average RTP percentages for some popular casino games.

  • Slot Games: from 85% to 99%
  • Classic Roulette: 97.3%
  • Classic Blackjack: 99.4%
  • Video Poker: from 95% to 99.5%

RTP Rates for Mega Moolah Slot Machines

RTP percentages for the Mega Moolah slot machine series are certainly not high! The main attraction of these games is the chance to win a life-changing jackpot. Depending on which Mega Moolah game variation you are playing, the RTP displayed is not always the same. The difference lies in the chances of winning jackpots on the non-progressive bases of the different slot machines. In terms of the winning odds for bonus wheel progressive jackpots, the RTP rate remains the same on all Mega Moolah game variations in the series.

Displaying RTP rates

In a land-based casino, slot machine RTP rates are indicated on a sign placed next to the machine. In an online casino, the information is displayed in a window that can be viewed using the game’s help menu. To ensure the authenticity of the rates displayed, the Gambling Commissions are responsible for verifying all information on display. Any fraudulent activity by gambling house operators may be punishable by huge fines or even imprisonment. You can therefore rest assured that you are viewing reliable data.

For table games such as blackjack and roulette, RTP rates are defined by the governing game rules. This information is made available to casino customers upon request. For online casinos, this information can be consulted via the games’ help menu.


An RTP casino game percentage is a convenient tool for any gambler. Finding the best return- to-player slot machines can give you more time to enjoy the game. On the other hand, don’t forget that the gambling house will always have the upper hand. Furthermore, the bigger the RTP, the less money you can win. Typically, slot machines with a 99% RTP rate will never give you the chance to win a big jackpot.