Updated: 2025
Highest RTP Slots UK 2025 | Play with Best Odds
Factors That Influence RTP
- The House Edge: the amount of money that the casino or site gets to keep on each machine.
It is the complete opposite of RTP since it is the rest of the percentage that is not returned to the player, hence, it can also be described as the amount of money which the player is certain to lose to the casino.
Therefore, if the house edge is 4%, that would determine the RTP to be 96%, while the casino enjoys the profit of that 4%.
- Slot Volatility/Variance: indicates the frequency of pay-outs players have the chance for and how high or low that pay-out would be.
Nevertheless, two slots machines may have the same RTP, but one may have a high volatility whilst the other a low volatility.
High Volatility and Low Volatility Slots Explained
High Volatility: When a slots game has high volatility or variance, it means that the chances of a pay-out are slim, but when the player does win, the pay-out would be much bigger than those slots with low volatility.
Needless to say, in cases of high volatility slots, their RTP is usually on the lower side for obvious reasons, for instance a 92%, thus, resulting in a higher house edge.
So, the player can either go big or go home, they can keep betting hoping to win for quite some time before getting any winnings since the machine is storing all the bets to combine them into one big pay-out.
Low Volatility: Slots with low volatility offer players more frequent pay-outs which increases RTP.
Contrary to high volatility slots, these machines are not pooling all of the player’s money to give one huge amount, instead they provide the player with frequent small winnings thus, providing a higher return to player ratio.
Due to the increase in frequency of pay-outs, the players end up receiving low amounts of money if they win. Despite the small amount, it is a good way to go especially for beginner of casual players since it allows players to maintain a balance when betting and lessens the risk of losing all their money.
What Does It Mean To Have A High RTP?
A high RTP has various perspectives, depending on the casino or person. Some people might say that having a high RTP means anything above a 98% rate whilst anything below 94% is considered to be extremely bad.
However, the common variations and understanding of RTP can be categorised in 3 groups:
- Poor RTP: 90% – 93.99%
- Mid-Range / Acceptable RTP: 93% – 96.99%
- Excellent RTP: 97% – 99%
Note: There are very few slots that have a 99.1% – 100% return to player value.
Calculating RTP
While there are gambling commissions and auditing bodies to verify the RTP value which is claimed by the providers, players might still prefer to confirm their own RTP for their individual sessions.
In order to do this, the player needs to collect some information such as their total wagered amount and their total winnings derived from those sessions they want to calculate, including those won with free spins.
The next step would be to divide the total amount of winnings by the amount that was wagered, remove the decimal that it results in and the player can now confirm the RTP of that slot.
For example:
75 spins have been played at 50c each during the session. Therefore, the total amount that has been wagered is £37.50 and the total winnings amounted to £24.
Now all that is left is to divide those winnings by the wagered amount. That being the case, £21 divided by £37.50 equals 0.64 and after removing the decimal, the result comes down to 64 which is the RTP for that session.
RTP Tips
Gambling comes with a lot of risks, which makes it enjoyable for some. However, betting at the risk of losing money is not the only thing players should be concerned about.
Before logging into a casino, or entering personal and financial details, one should do a bit of research on the casino or site they are trusting their information with.
To avoid the risk of being scammed or have their information stolen, one should make sure that their casino is a licensed casino regulated by trusted governmental bodies such as the following well-known confederations:
- MGA (Malta Gaming Authority)
- UK Gambling Commission
- Swedish Gambling Authority
This assures that the player is using a trusted and unambiguous casino.
Using any other unlicensed casinos is not suggested and they are not to be trusted.
More often than not, these casinos offer games that do not confirm their RTP or have a fake RTP value to adjust to a particular market especially those with high tax rates.
With that being said, enjoy playing safely and responsibly!
FAQ
The RTP refers to Return to Player, which describes the percentage of your bankroll that you might assume to win back.
All game providers are required by law to make the information as accessible as possible to all users.
Most casinos present such information visibly but if you find it difficult to find out a slot’s RTP, make sure you check it with a customer service representative.
Yes. The higher the volatility of a slot is, the less frequent payouts you can expect.
However, once it does payout, you will also notice higher winnings. The rule works likewise the other way round – lower volatility gives you more frequent, yet lower in value payouts.
No. There aren’t any slots that guarantee winnings, mainly because the RTP of these games is always below 100%. However, the higher the RTP is, the better the chances of making a profit you will have when playing the slot.
When a player triggers the jackpot, the slot will have to pay a massive sum of money. For this reason, the game operator will have to put money aside to pay for this user’s windfall.
The slot developer will do so by lowering the RTP and stashing this money which later will be used to cover the prize’s value for the jackpot winner.
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