# Roulette Probability Formula : Calculate Odds to Win

Online Roulette is a fast-paced, fun game and the probability of winning is determined by what kind of bet the player makes. If a player bets a single number the roulette probability is 37 to 1 because there are 38 possible outcomes. However, there are many other types of bets a player can make to increase his chances of winning.

Types of Bets

In the split bet a player places his chip on the table between two numbers, thereby betting on both numbers. The roulette probability then increases from 37 to 1 to 18 to 1. A player can also make what is called a street bet; this is when a player bets three numbers in a row on the table and the roulette probability increases to 11.67 to 1. To make a corner bet the player chooses four numbers and the probability is 8.5 to 1.

Increasing the Probability Even More

Placing a bet on five numbers is known as a top line bet and makes the probability of winning to 6.6 to 1. A player can also bet on a dozen numbers with one chip. To do this, the player places his chip on the first, second or third set of 12 numbers on the table and the probability is 2.167 to 1. Take these new skills to Maple Casino, a well-known and highly recommended Canadian online casino.

Finally, there is the even money bet, which is done by placing a chip on odd or even, red or black or the high or low areas of the table. The roulette probability is 1.11 to 1 that the player will win with this bet.

Roulette is a game based on luck. However, a player can increase his probability of winning by placing different kinds of bets. The probability of winning increases with the amount of numbers bet, and this can often be done using only one chip.