Which roulette bet is the safest?
Short answer: none of them. On a European wheel every bet, from red to a single number, takes the same share in the long run: 2.70% of the amount staked. The difference is not in the price but in the swings. Red wins often and pays little; a single number rarely wins, but pays a lot when it does.
So the ‘safe’ feeling comes from frequent small wins, not from better odds. Remember that one idea and the rest of roulette is just knowing the rules.
Below we go through the wheel types, the payouts for each bet and where the house’s share comes from.
37 or 38 pockets: check this first at any roulette table
The key figure is not the colour of the betting area but how many green pockets the wheel has.
| Wheel | Pockets | House edge | What to watch |
|---|---|---|---|
| European | 0 and 1–36 (37) | 2.70% (1/37) | The baseline; measure everything against it. |
| French, with La Partage or En Prison | 37 | 1.35% on even-money bets | All other bets still cost 2.70%. |
| American | 0, 00 and 1–36 (38) | 5.26% (2/38) | The double zero nearly doubles the price. |
The two French rules deal with the same situation. With La Partage, if zero comes up, you get back half of any stake on red, black, even, odd, low or high. With En Prison, the stake goes ‘to prison’ and the next spin decides whether you get it back. Whether a table uses either rule is stated in the game help; the name alone tells you nothing.
Why exactly 35 to 1? Payouts and the missing pocket
Roulette payouts are calculated as if the wheel had only 36 numbers. A straight bet on one number pays 35:1, so 1 euro wins you 35 euros and you keep your stake. With 36 pockets that would be perfectly fair; the 37th pocket, the zero, is the house’s share.
| Bet | Numbers covered | Payout | Chance of winning on a European wheel |
|---|---|---|---|
| Single number | 1 | 35:1 | 1 in 37 |
| Two numbers (split) | 2 | 17:1 | 2 in 37 |
| Row (street) | 3 | 11:1 | 3 in 37 |
| Four numbers (corner) | 4 | 8:1 | 4 in 37 |
| Six numbers (two rows) | 6 | 5:1 | 6 in 37 |
| Dozen or column | 12 | 2:1 | 12 in 37 |
| Colour, odd/even or high/low | 18 | 1:1 | 18 in 37 |
Pick any row: multiply the numbers covered by the payout plus one (your stake back) and you always get 36. That is why every bet carries the same price. The longer derivation is in the lesson on RTP and house edge.
Three roulette beliefs put to the test
| What many people believe | What is actually true | How to check it |
|---|---|---|
| After five reds, black is now due. | The wheel has no memory; every spin is independent and the chance is always 18/37. | Write down fifty results from one table and count what came after the longer streaks. |
| If I double after each loss (Martingale), I always win in the end. | A losing streak quickly hits the table limit or your budget, and then the full loss stays. | Do the sum: starting at 1 euro, after ten losses the next bet is already 1,024 euros. |
| Covering lots of numbers means losing less. | Coverage makes wins more frequent; it does not lower the house edge. | Add up your stakes and the possible payout: the gap is always the zero. |
The flaw in doubling systems and ‘hot numbers’ is unpacked in detail in the lesson on the gambler’s fallacy.
Software wheel or studio wheel: what changes and what does not
An online casino offers roulette in two forms. In the software version a random number generator decides, you set the pace, and where the lobby offers a demo you can try it without staking anything. In the live version a real wheel spins in a studio and the round follows the dealer’s clock.
The maths is the same in both: 2.70% on a European wheel. What differs is the number of rounds per hour, and with it the cost. The specifics of live tables are covered in the lesson on live dealer games.
A hundred spins in two styles: red versus a single number
Practice exercise with made-up numbers – not Dukat.bet data:
Anna bets 1 euro on red for a hundred spins on a European wheel. Ben bets 1 euro on number 17 for the same hundred spins. Which of them loses more on average, and what is the difference between them?
Solution. Both wager 100 euros. The house edge is 2.70% on both bets, so the average loss is 2.70 euros for each of them. Anna wins roughly 48–49 times on average, Ben about 2.7 times. The chance that Ben misses on all hundred spins is (36/37)¹⁰⁰ ≈ 6.5%.
In other words, the price is identical but the experience is completely different. On a French wheel with La Partage, Anna’s average loss would drop to 1.35 euros; on an American wheel, both would rise to 5.26 euros.
Before you place a chip: three lines for your roulette notebook
- Number of pockets: 37 or 38? If La Partage or En Prison applies, note it next to it.
- Your betting style: frequent small wins or rare big ones. The price is the same, the swings are not.
- Cost per hour: rounds × stake × house edge. Compare that figure with your budget.
Once roulette makes sense, the next step is a table game where your decisions carry weight too: blackjack basics.