For many years, Roulette has remained one of the most widely recognised and played casino games, available both in physical venues and online platforms.
The aim of the game in online Roulette is simple, just as it is in the land-based table versions – you place bets on where you think the ball will land on the numbered wheel, the wheel is spun and the ball released into play, and the ball eventually lands to determine payouts according to bets.
When it comes to placing a bet in online Roulette, your options are typically grouped into two main categories – inside bets and outside bets. This can includes being able to bet on specific numbers, bet on red or black, and many other options in live Roulette.
Understanding the structure of these two types of bets will help you navigate your options and make more informed decisions when choosing to play an online game. Let’s take a closer look at your betting options in online Roulette.
What Are Inside Bets?
Inside bets are placed on specific numbers or small groups of numbers within the grid on the Roulette table – or in the digital format, the online interface for betting. These are located in the central section of the betting layout.

There are several variations of inside bets to choose from:
- Straight-up: A bet on a single number.
- Split: A bet placed on the line between two adjacent numbers.
- Street: A bet on a row of three consecutive numbers.
- Corner: A bet on four numbers that form a square on the layout.
- Line: A bet on two adjoining rows, covering six numbers.
Because these bets cover fewer numbers, they represent a lower chance of landing a matching result. However, this also means their associated payout rates tend to be higher compared to broader bets.
What Are Outside Bets?
Outside bets are located around the perimeter of the digital betting grid. These bets cover broader groups of numbers and are generally considered more straightforward bet types. Options include:
- Red or Black: A bet on whether the ball will land on a red- or black-coloured number.
- Odd or Even: A bet on whether the result will be an odd or even number.
- High or Low: A bet on whether the number will be from 1–18 (low) or 19–36 (high).
- Dozens: A bet on one of the three ‘dozen’ groups: 1–12, 13–24, or 25–36.
- Columns: A bet on one of the three vertical columns of numbers on the table.
These bets often have higher chances of matching the outcome than inside bets, and because of that broader coverage, the associated payout rates are lower.
Choosing Between Inside And Outside Bets
The choice between inside and outside bets depends simply on your player preference and how much coverage you want across the wheel.
You can often combine different bets within a single round, allowing you to spread your options. However, remember that each bet counts individually, so your total wager will increase with each additional selection.
It’s important to remember that Roulette is a game of chance, and no matter what type of bet you choose to place, all outcomes are produced randomly. Thanks to random number generator (RNG) technology, no matter the type of bet you place, every result is independent of the last.