While there are dozens of different bets that people can make in roulette, all wagers are classified under three categories: outside bets, inside bets and announced bets. With this being said, let’s take a look at the different categories to see where each bet belongs.

Inside Bets are placed either directly on numbers, in between two numbers, at the end of a line, and at the intersection of multiple numbers. The different inside bets are as follows:

Single Number or Straight-Up (one number) - Bet on a single roulette number; chips are placed directly on the number.

Split Bet (two numbers) - Placed on the line in between two numbers; can be either a vertical or horizontal line.

Street (three numbers) - Wager on three numbers in a horizontal line; chips are placed at the edge of a line (away from outside betting area).

Trio (three numbers) - Only offered in European roulette, and it involves placing chips at the intersection of either 0, 1, 2 or 0, 2, 3.

Corner (four numbers) - Bet where chips are placed at the intersection of four numbers.

Top Line (five numbers) - Only offered in American roulette, and this bet sees players put chips at the outside corner of 0 and 1.

Six Line (six numbers) - The six line bet is a wager on two joined streets, and players put chips at the intersection of two streets.

Outside Bets are placed outside of the numbered grid on a roulette table, and here are all of the available outside wagers:

1-18 (high) or 19-36 (low) - Players bet on the ball landing on either the eighteen lowest numbers (0 and/or 00 not included) or the highest set of eighteen numbers.

Red or Black (both symbols) - Bet made on the ball landing on either the color black or red.

Even or Odd - Wagering that the ball will land on either an even number or an odd number.

Dozen (1st 12, 2nd 12, 3rd 12) - Bet that can be made on the ball landing on either the first set of 12 numbers (1-12), second set of 12 numbers (13-24) or third set of 12 digits (25-36).

Column (2 to 1) - There are three different columns that players can bet on, and they’re all signified by a “2 to 1″ space.

Announced Bets are wagers that need to be said out loud as a person is placing their chips on the table. The reason why these bets are announced is because they’re not on the board, and here’s a look at each one:

Voisins du Zero - Covers 0, 2, 3, 4, 7, 12, 15, 18, 19, 21, 22, 25, 26, 28, 29, 32 and 35; there are seven bets within this string of numbers that need to be covered with nine betting units. For example, if you were making $5 bets, you would need to bet $45 total.