How to Compute Slot Machine Odds

By eHow Hobbies, Games & Toys Editor

Slot machines are the most popular casino game. Put in a dollar (or quarter, dime, nickel), and pull the lever to maybe win some money. Many people think the odds lie in how often the game is played, or how many different pictures there are to show up. But here is how you can compute your slot machine odds.

Read the signs on your slot machines. Modern day slot machines use Random Number Generators (RNG) to figure out the percentage winners of slot machines. A RNG is the software the slot machine has been programmed with that decides how often someone will win. The odds for winning are usually around 80 to 90 percent. The slot machines should have signs up that tell what percentage of payouts it gives.

Know the meanings of payouts. Don't be fooled by a sign that says "This machine has a 95 pwexwnr payout." That doesn't mean that it has a winner 95 percent of the time. It means that it pays out 95 percent of the money put into it over a given period of time. For instance, a slot machine with a 95 percent payout might be programmed to pay a total of $950,000 for every $1 million put in.

Understand that the more money you bet, the higher your odds of winning. Most machines have the option to put in different amounts of money. It may be a $5 machine that lets you put a maximum of $5 and a minimum of $1. The higher the amount you put in, the higher the odds of winning are.

Know the odds of winning the jackpot slot machine. Jackpot machines are often linked to several other machines at once. All the machines contribute to the jackpot, as the number climbs due to each play from all the machines. The odds for the jackpot machine are harder than the other machines. On all the machines, the odds of winning are randomized every pull, and you just have to get 3 of a kind, or 5 of a kind depending on the type of machine. For a jackpot, you have to get the highest win possible (so for a poker slot, you'd need to get a royal flush to win the jackpot). Normal wins of everything being the same will give you a win (a certain amount of money), but only this exclusive jackpot win will give you the big payout.

Know which type of slot machine you're playing. Know if you're playing Class II or Class III. In a Class II slot machine, you're playing against other players, and there is bound to be a winner every time. In fact, the game will continue until there is a winner. In a Class III machine, however, it's you against the house. These are the games with the highest prize, but the odds of winning are also much more in the house's favor.