Slots Odds

Slots odds are the probabilities of getting a winning combination on the reels. They depend on the type of slot machine you play. Originally the odds were very easy to calculate as the only thing the players had to consider were the number of reels and the symbols used on each of the reels. As a result, the 3-reel slot machines are traditionally believed to be better for player's winning chances, and thus the more reels and symbols on them, the lower a player's advantage.

Slot winning combination
A player has 1 in 8000 odds of getting one combination at classic slots

How to Calculate Odds

The odds of getting any combination on the slot reels are easy to calculate if you know the number of symbols used on each reel. Let's take a closer look at the odds and consider an example:

If you have to make a line of 3 diamonds on one payline to win the jackpot, it is most likely that each reel has only one diamond symbol on it. If the machine is a 3-reel one and there are 20 symbols on the reels, the chances of hitting this combination are:

Possible combinations on the reels: 20 x 20 x 20 = 8000. The odds of getting this combination are 1 in 8000. For a 5-reel slot machine the chances are even less: 20 x 20 x 20 x 20 x 20 = 1/ 3,200,000 (1 in 3,200,000). The slots probabilities are usually shown as a percentage, so for 3-reel and 5-reel slot machine with 20 symbols on each reel we have these probabilities:

Slots Probabilities

However, the number of symbols on the reels can differ from machine to machine, and that is why the slots odds are different. Here we look at some more examples of slot machines containing 3 and 5 reels each with different number of symbols on them - for these examples: 20, 22 and 25.

Slot Machine Type Number of Symbols Number of Combinations Odds Probabilities
3-reel 20 8,000 1 in 8,000 0.0125%
22 10,648 1 in 10,648 0.0093%
25 15,625 1 in 15,625 0.0064%
5-reel 20 3,200,000 1 in 3,200,000 0.0003125%
22 5,153,632 1 in 5,153,632 0.0000194%
25 9,765,625 1 in 9,765,625 0.00001025%

Slots Payback Percentages

The slots payback or return is the amount of money the slot machine pays out as winnings, against the total number of credits wagered by players. The payback is always shown in percentage.

The main idea behind counting the odds in slot machines lies in understanding how the machine pays out money. Unlike what many people believe, not everything is random in a slot machine. Slots are programmed to pay out a certain percent of the money put in with each play.

For example, one machine may pay back 80% of bets while another one may pay back 91% and even 100%. This means that for every dollar put in the machine the casino takes 9 cents and pays out 91 cents. But it does not do it for every dollar put in, it just pays out explosively and this is what makes the game so great.

You must remember that there are two basic types of slot machines. These are:

  • Loose slots are slot machines that are programmed to return 82-98% of the wagered money, or even more if you play slots online. As a rule, high-denomination slots pay out more than those offering, for example, $0.05 or $0.25 bets. For more about typical paybacks on different slot machines please read the strategies page.
  • Tight slots are machines that pay out less than 80% and sometimes down to 50% of the wagered money. To avoid playing at these slot machines try not to gamble in motels, airports, bars, gas stations, etc. The payback percentages vary from casino to casino and that is why it may be difficult to find the best machine in the gambling hall.

As you understand, one of the best slots tips on how to win at slots is always to look for the loose machines. It can be easy if the gambling hall shares this information with the visitors. In any case you can gamble on the Internet as most online casinos provide the statistic data about their slots games. So, when choosing one of the casinos recommended by SlotsDoc.com you can expect such paybacks:

ONLINE CASINO FAQ

What are the best free online slots?
Some of the best free slots to play online include:
  • • Thunderstruck II
  • • Flaming Hot
  • • Aztec Glory
  • • Cleopatra II
  • • Zeus III
  • • Alaskan Fishing
You have a wide choice of free slot machines available online. That gives you the freedom to pick the desired theme and game features, and enjoy a game that suits your style.
What are free slots?
A slot machine is a gambling software where you need to land the symbols on reels in suitable combinations to win. The number of reels, as well as game themes, vary. Free slots are gaming machines that you play online without actual cash. Instead, you use play money, and no winnings or losses are 'real.'
Can you win money playing online slots?
Yes, you can win money if you play online slots. There are two ways to do that – the first one is to add funds to your account and play for real money. An alternative is to find a casino that has a no deposit bonus. Those platforms give you a chance to play slots and win without investing anything.
What is the easiest game to win at a casino?
In theory, you have the biggest chances at winning if you choose a game with a low house edge. The casino has a slight advantage in every game, but that edge varies. In video poker, it can be as low as 0.5% if you choose the right variation. Craps have 1.4% of the house edge, baccarat 1.5%, blackjack 1.5%, and roulette 2.7%. In slots, the edge can be anywhere from 2% to 10%.
What casino game has the best chance of winning?
You may want to give a chance to blackjack since the house edge is around 1%, although it depends on the variation you choose. Craps can also be a smart choice, as well as a single-zero roulette where the edge is about 2.7%. Before you start playing a game, make sure to be aware of the house edge.
Can you win money on online slots?
Yes! Not only you can win money on online slots, but progressive machines offer a chance to earn millions. For an opportunity to win money, you need to play for actual cash. The good news is that you can use the no deposit bonuses if you do not want to invest real funds.
What slot games pay real money?
The biggest sums can be won on the so-called progressive slots. The jackpots on these machines are often over $1 million. Other real money online slots also have tempting prizes, and you have a wide choice of themes, features, and other characteristics that will maximize your gaming experience.
Is it legal to play online slots in the US?
If we are talking about federal law, yes, it is legal to play slots online. However, keep in mind that the law may vary depending on the state. If gambling is allowed in your location, you can enjoy online slots without worrying about the law.
What games do you play in a casino?
Slot machines are the number one on the list for most players. However, you can also enjoy video poker, as well as table games like craps, baccarat, roulette, and blackjack. Many online casinos offer a live gaming section with actual human dealers. That way, you can feel like you are in a real land-based casino.
How do you play casino games online?
It is vital to choose a reliable and safe platform. Next, check the list of available games to ensure it includes your favorites. Now, create an account on the desired website, and add funds to your account via one of the supported payment methods. Finally, pick from slots, roulette, blackjack, or other games and start playing!
How do you pick a winning slot machine?
If you want to choose a machine where you have the best winning odds, you should go for slots that have the highest RTP percentage. This percentage will vary from one player to another, but make sure to go with at least 95%. Additionally, choose slots that offer free spins, and machines that offer generous payouts.
What's the easiest game to win at in a casino?
The experienced players would suggest that blackjack is the game where players have the biggest chance of winning. The house edge is only about 1%, you can adjust your strategy, and even count cards when playing offline. All that gives you a nice chance to boost your funds.
What's the best online slot machine?
Mega Moolah and Mega Fortune are games that offer the most tempting progressive jackpots, and grand prizes that can go over $10 million. If you are not looking for the highest prizes, it is all about your preferences. You can try classics like Starburst, licensed slots like Monopoly slot, or choose your favorite theme and features.

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