Roulette Layout Explained: Inside Bets, Outside Bets and Zero
Read a standard roulette layout, distinguish number bets from outside groups and understand why zero is not included in red/black or odd/even wagers.
Published 24 10 月 2026
A roulette layout is a map of covered outcomes. The first question is not which patch is larger, but which exact numbers a wager includes. A broad-looking area may cover many numbers while still losing on zero. Reading that coverage prevents mistakes that cannot be resolved by watching the wheel alone.
Identify the wheel before reading the groups
A conventional European wheel contains 1 to 36 plus one zero. An American double-zero wheel adds a 00 pocket. A French table also uses a single-zero wheel but may have different terminology and a special zero rule. These names describe variants; they are not interchangeable guarantees about payout or settlement.
Check the selected product’s title and number layout. An illustration may be stylized or omit labels. The picture accompanying this article is category artwork, not a diagram certifying a single-zero or double-zero table at M2.
Inside bets refer to individual numbers and small combinations
On the usual numbered grid, a straight-up wager covers one number. A split covers two adjacent numbers in the layout; a street covers a row of three; a corner covers a block of four; a six-line covers two adjacent rows. Special combinations around zero depend on the layout and rules.
The position where a chip lands matters. A chip placed on a line can represent a different selection from one placed in the middle of a numbered box. If the interface displays a selection summary, check its named combination rather than assuming the visual position was interpreted as intended.
Outside groups cover specified sets
Red/black, odd/even and low/high normally refer to numbers 1 through 36. The low group is 1–18 and the high group 19–36. Dozens are 1–12, 13–24 and 25–36; columns are the vertical groups shown on the layout. A dozen and a column each cover twelve numbers but do not contain the same numbers.
For example, 14 is even, low and in the second dozen. These descriptions can overlap. Several selections responding to the same result are not independent events, and each separate wager still has its own cost.
Zero is outside the usual even-money groups
Although zero is an even integer in mathematics, roulette’s “Even” wager conventionally covers the eighteen even numbers from 2 to 36, not zero. Zero is also neither red nor black. Do not add it to a group based on everyday language rather than the listed coverage.
Read the zero rule and payout notes separately
Standard losing treatment, French La Partage or another modified rule can produce different consequences. A product with multipliers may also alter the ordinary payout table. The category name and a familiar wheel picture do not resolve those differences.
Use M2 category overview to return to the site’s live-game category. This guide explains selection coverage, not a betting system, a recommendation to combine wagers or confirmation of the variants currently offered by M2.
