Roulette is one of the easiest casino games to recognize, but its betting layout can look confusing to someone seeing it for the first time. The table contains individual numbers, lines, intersections, colors, columns, dozens, and several other areas where chips can be placed.
Fortunately, the basic objective is simple. Players predict where a small ball will land after it travels around a spinning wheel. A wager can target one exact number or cover a larger group of possible results.
This guide provides roulette rules explained in beginner-friendly language, with particular attention to inside and outside bets.
Inside wagers cover specific numbers and generally offer larger payouts with lower winning probabilities. Outside wagers cover broader categories, such as red or black, and pay smaller amounts.
Roulette remains a game of chance. No betting pattern can control the wheel or guarantee long-term profit. Before participating, check local gambling laws, read the table rules, and set a spending limit that does not affect essential expenses.
How a Roulette Round Works
A round begins when players place chips on the betting layout. The dealer, commonly called the croupier, spins the wheel and sends the ball in the opposite direction.
Before the ball drops into a numbered pocket, the croupier announces “no more bets.” No additional chips should be placed or moved after that announcement. The winning number is marked, losing wagers are collected, and qualifying bets are paid.
Understanding the Wheel and Table
A standard European roulette wheel contains numbers 1 through 36 and one green zero. An American wheel adds a green double-zero pocket.
The table layout does not follow the same numerical order as the wheel. Instead, numbers 1 through 36 appear in three columns, with separate spaces for zero and, on American tables, double zero.
The exact position of a chip determines the type of wager. A chip placed inside one numbered square is different from a chip resting on a line between two squares.
What Are Inside Bets?
Inside bets are placed within the numbered area of the layout. They cover fewer possible outcomes and therefore offer larger advertised payouts.
A straight-up bet covers one number and pays 35 to 1. A split covers two adjacent numbers and pays 17 to 1. A street covers a row of three numbers and pays 11 to 1.
A corner bet covers four numbers meeting at one intersection and pays 8 to 1. A six-line wager covers two neighboring rows, or six numbers, and pays 5 to 1.
What Are Outside Bets?
Outside bets appear around the numbered grid and cover larger groups of results. They win more frequently than inside bets, but their payouts are lower.
Red or black, odd or even, and low or high bets cover 18 numbers and normally pay even money. Low covers 1-18, while high covers 19-36.
A dozen wager covers 12 numbers: 1-12, 13-24, or 25-36. Column bets also cover 12 numbers. Both normally pay 2 to 1.
How Roulette Payouts Are Calculated
A payout of 35 to 1 means a winning $1 straight-up wager earns $35 in profit, with the original $1 stake also returned. The total amount received would therefore be $36.
An even-money $10 bet earns $10 in profit and returns the original stake, producing a total return of $20.
Larger payouts do not mean better mathematical value. A straight-up bet pays more because it covers only one pocket, while an outside wager pays less because it covers many possible results.
Why Zero Changes the Odds
Zero and double zero are not considered red, black, odd, even, low, or high. When either green pocket wins, most standard outside bets lose.
This gives the casino its mathematical advantage. A European wheel has 37 possible pockets, while an American wheel has 38. The additional double zero increases the number of losing outcomes without increasing the standard payouts.
Roulette is therefore a banker’s game with a built-in house advantage, regardless of whether the player chooses inside or outside wagers.
Avoid the Gambler’s Fallacy
Roulette tables often display recent results, but the history board is not a prediction system. If red appears six times in a row, black is not guaranteed to appear next.
Each properly operated spin is a new event. MGM’s GameSense guidance specifically notes that previous spins do not make a particular future result more or less likely.
Progressive betting systems may change how much is risked, but they do not change the probability of the ball landing in a particular pocket.
Inside and outside bets are simply two ways of covering the roulette layout. Inside bets target one or several specific numbers and offer larger payouts, while outside bets cover broader groups and produce smaller returns.
Straight, split, street, corner, dozen, column, color, and odd-or-even wagers all follow fixed placement and payout rules.
Before placing a chip, identify which numbers the wager covers and calculate the full amount at risk. Check whether the wheel has one zero or two, because that difference affects the casino advantage.
Use free educational play where available, set a firm spending and time limit, and stop when either one is reached. Roulette should be treated as paid entertainment, never as a reliable source of income.