Roulette feels like a coin flip. Red or black, heads or tails. It isn’t, though, because of the existence of a third option: the green 0. This isn’t to say that it’s pointless, but rather, it can help work out how much it costs (on average) per hour of being there. Then you can view a trip to the betting establishment the same way we view renting a snooker table.
What Is the Infamous House Edge?
The house edge is what is known as the house advantage. It’s the small percentage they have over you, so you know that, for every dollar wagered, this is the amount you can expect to lose in the long run.
For roulette, it comes down to how many pockets are on the wheel versus what a winning bet pays out. A European wheel has 37 pockets (numbers 1–36 plus a single zero) and a straight-up bet pays 35 to 1.
If you’re interested in the formula, it looks like this: (pockets − payout − 1) ÷ pockets
You get 2.70%. Add a second zero, like seen on American tables, and the edge jumps to 5.26%, more than double, for literally no extra entertainment value. French roulette though, with its la partage rule refunding half of even-money losing bets, brings it down further, closer to 1.35%.
Turning the Edge Into an Hourly Cost
Percentages are pretty abstract and useless until you attach a clock to them (though, they’re useful for comparing house edge between games, which, by the way, Blackjack tends to be most kind).
The maths is simple: average bet × spins per hour × house edge = expected loss per hour.
So, say you’re betting $10 a spin on a European-style wheel at a typical online pace of around 40 spins an hour, that’s roughly $10.80 an hour, on average, going to the house. Not bad, considering most entertainment spaces cost more than that, plus with $10 spins, you’re holding out for a potential $350 payout if you get the right number.
Switch to an American wheel at the same stakes and pace, and it roughly doubles to about $21. That gap is exactly why wheel type is the first thing worth checking among the roulette at Christchurch Casino before you sit down. Just count the zeros.
Session Length Doubles As the Bill
The UK Gambling Commission’s own session-length data shows the average online session running around 17 minutes, with around 6% stretching past a full hour. Bump a 17-minute session up to 60 minutes and your expected loss doesn’t creep up, but multiplies by three and a half.
The irony is that, while some people see this as an argument against playing, others see it as a license to play (and most importantly, pay) for their entertainment. Knowing that, on average, you will end your session down on money, and by how much, means that it’s less stressful and frustrating. You can also set a timer on how long you will play for (and a fixed stake), and while this isn’t a hard limit on losses, it’s a good expected loss limit in the long run. Is it worth it? For some, but not others.
