Online lottery bet is similar to online casino, but instead of betting on a poker game, you’re betting on the outcome of a lottery draw. These websites are regulated and licensed by gaming commissions across the globe, so you can play with confidence and be safe.

The odds of winning a jackpot are usually around 1 in 292 million (for Powerball, the US’s biggest lottery) but they can vary significantly from one draw to the next. That’s why it’s so important to understand your odds before deciding whether or not you want to play.

You should also check the odds of winning a second-chance prize, which is available to players who don’t win the main jackpot. It can give you a chance at six-figures or even more.

Some lottery sites also offer syndicates and multiple draws, which allow you to share your tickets with other people. These can make it easier to win, but you should be aware that they’re a lot more expensive than playing individually.

A good lottery odds calculator will help you work out the exact odds of winning a particular lottery game. It takes into account the amount of balls that will be drawn in a drawing and the range of numbers that you’ll be choosing.

Some sites will also use probability theory to predict when a specific lottery draw is likely to end in a big winner. It’s a great tool for players who want to make informed choices on what to play and when to skip.