What is a unit?Ī betting unit is a set amount that you bet with on each spin of the roulette wheel.įor example, if you have a bankroll of $100 to play with, you might choose to use $2 as your default betting unit. But when playing roulette online, this is just the balance you have to play with. Note: Your 'bankroll' is usually the amount you take to the casino for all gambling expenses. Tip: You could also enter your bankroll and bet size in to the simulator to see how your sessions could pan out. Just enter your bankroll to the nearest whole number and click Calculate! High Risk: An ideal unit if you want to go for bigger wins.Recommended: A good unit size to start with.Safe: An ideal unit if you want to maximize your time spent at the table.Why? Because when you pay a visit to the roulette table, you want to get the most from the game as possible with the money you have to play with. I have created this roulette calculator to help you to determine the unit size that you should bet with depending on the size of your bankroll (the money you have to play with).