There are several different types of bets in Roulette, divided into two types, Inside Bets and Outside Bets. Inside bets are bets placed on the individual numbers or a specific set of numbers while outside bets are placed on options such as 'red or black', 'even or odd', or '1 to 18'. The payout odds for each type of bet is based on its probability.

When a winning number and color is determined by the roulette wheel, the dealer will place a marker also known as a dolly on that winning number on the roulette table. When the dolly is on the table, no players may place bets, collect bets, or remove any bets from the table. The dealer will then sweep away all other losing bets either by hand or rake, and determine all of the payouts to the remaining inside and outside winning bets. When the dealer is finished making payouts, the marker is removed from the board where players collect their winnings and make new bets. The winning chips remain on the board.

Inside bets

• Straight-up: a single number bet. The chip is placed entirely on the middle of a number square.
  
• Split: a bet on two adjoining numbers, either on the vertical or horizontal (as in 14-17 or 8-9). The chip is placed on the line between these numbers.
• Street: a bet on three numbers on a single horizontal line. The chip is placed on the edge of the line of a number at the end of the line (either the left or the right, depending on the layout).
• Corner (or square): a bet on four numbers in a square layout (as in 11-12-14-15). The chip is placed at the horizontal and vertical intersection of the lines between the four numbers.
• Six Line: a bet on two adjoining streets, with the chip placed at the corresponding intersection, as if in between where two street bets would be placed.
• Trio: a bet on the intersecting point between 0, 1 and 2, or 0, 2 and 3 (single-zero layout only).
• Basket: a bet on 0, 1, and 2; 0, 00, and 2; or 00, 2, and 3 (double-zero layout only). The chip is placed at the intersection of the three desired numbers.
• Top Line: a bet on 0, 00, 1, 2, and 3 (double-zero layout only). The chip is placed either at the corner of 0 and 1, or the corner of 00 and 3.

Outside bets

• 1 to 18: a bet on one of the first low eighteen numbers coming up.
• 19 to 36: a bet on one of the last high eighteen numbers coming up.
• Red or Black: a bet on which color the roulette wheel will show.
• Even or Odd: a bet on an even or odd number.
• Dozen Bets: a bet on the first (1-12), second (13-24), or third group (25-36) of twelve numbers.
• Column Bets: a bet on all 12 numbers on any of the three vertical lines (such as 1-4-7-10 on down to 34). The chip is placed on the space below the final number in this string.