Skip to content

Play

What is roulette? The game, the word and where it came from

A game of chance where a ball on a spinning wheel picks the winning number

MeaningPartsGlossaryChecked 4 Nov 2026

What is roulette: a single zero roulette wheel with numbered red, black and green pockets and the ball in 26

What is roulette in one line: a casino game of pure chance in which a ball spun around a turning wheel drops into one numbered pocket, and everyone who bet on that number, or on a group containing it, gets paid. There is no skill in picking the number and no way to influence it, which is exactly why the game is easy to learn and why its odds can be stated so precisely.

At the table

  • Word meaning

    French for little wheel
  • Said as

    roo-LET
  • Type of game

    Pure chance, no player decisions affect the result
  • Main versions

    Single zero (European, French) and double zero (American)
  • Run by

    A dealer, also called a croupier
  • Origin

    France, well over two centuries back

What is roulette? A plain definition

Roulette is a betting game played on a table with two halves. At one end sits a wheel with 37 or 38 numbered pockets. Along the rest of the table runs a cloth printed with the same numbers, where players set chips to show their bets. The dealer spins the wheel, sends a small ball around its rim the opposite way, and waits for the ball to fall into a pocket. That pocket settles every bet on the table at once.

Unlike card games, nothing you do after betting changes anything. You cannot hold, fold or double. You decide three things only: the bet, its size, and the moment you quit. That simplicity is why the odds can be printed in a short table and checked by anyone with a pencil.

What the word roulette means

In French, roue is a wheel and roulette is its small form, so the name literally means little wheel. English kept the French spelling: r, o, u, l, e, t, t, e, with a double t. The stress falls on the end, roo-LET. In Spanish it is ruleta, in Italian roulette as well, and in German it keeps the French form too.

Away from casinos the word is used for anything left to random choice, such as picking a dish or a destination at random. That everyday use comes straight from the image of a ball landing wherever it lands.

The parts of a roulette game

PartWhat it isWhy it matters to you
WheelA spinning rotor with 37 or 38 pockets inside a fixed wooden bowlThe number of green pockets sets the house edge
BallA small hard ball, usually white, spun around a track below the rimIts many bounces make the result unpredictable
LayoutThe printed cloth: a three column number grid, green zeros on top, outside boxes along the edgeWhere you place chips to make a bet
ChipsColored wheel chips, one color per playerThe dealer can always tell whose bet is whose
DealerThe casino worker who spins, calls and paysRuns the pace and settles every bet
DollyA small marker set on the winning numberWhile it stands, nobody touches the chips

For the full map of the cloth, see the roulette table layout; for the wheel itself, see roulette wheel.

What is roulette like to play? One round

Chips go down, the wheel turns, the ball is launched, betting closes, the ball drops, the dolly goes on the winner, losers are cleared and winners are paid. Then it starts again. A live table runs perhaps thirty to forty rounds an hour; a screen can run far more.

There are two kinds of wager. Chips placed among the numbers themselves are inside bets, holding one to six numbers for a big payout. Chips in the surrounding boxes are outside bets, holding twelve or eighteen numbers for a modest one. The step by step version, with a worked example, is on how to play roulette.

Roulette layout showing an inside bet on a corner and an outside bet on even, the two bet families
Inside bets live on the numbers; outside bets live in the boxes around them.

Who invented roulette, and roulette history in brief

No single inventor can be named with confidence. French gaming rooms gave the game its shape over two centuries back, blending ideas from older wheel and lottery style games that were already popular there. The French gave it its name, its layout and the French bet names still printed on some tables.

From France the single zero version spread across Europe. Across the Atlantic, American houses settled on a wheel with an extra 00 pocket, which is why American tables carry 0 and 00 and a higher edge. Some US casinos have since added a third green pocket, the triple zero wheel.

Stories about secret formulas hidden in the wheel are legends. The numbers 1 to 36 do add up to 666, which is a neat fact and nothing more. See roulette numbers for more about the numbers.

The roulette ball and the dealer's spin

Early balls were ivory or wood. Casino balls are now made of hard non metal materials such as resin or teflon, and regulators set the size and material. Lighter or bouncier balls jump around more before settling.

Ball and rotor always travel in opposite directions. Many rule books require several laps of the track, and a spin that falls short is called no spin and repeated. Can a roulette dealer control the ball? People have long argued that a practiced dealer might favor a section of the wheel, but the bounces off the deflectors and pocket walls scatter the ball widely, and many casinos have dealers vary speed or change direction. There is no reliable way for a dealer to hit a chosen number, and casinos watch results closely.

Roulette terms: a short glossary

TermMeaning
CroupierThe dealer at a roulette table
No more betsThe call that closes betting for the spin
Straight upA bet on one number
Split, street, corner, six lineInside bets on 2, 3, 4 and 6 numbers
Dozen, columnOutside bets on 12 numbers
Even moneyBets paid 1 to 1, such as red or odd
La partageFrench rule: zero takes only half your stake on a 1 to 1 bet
En prisonFrench rule: an even money bet is held one more spin after zero
RotorThe turning part of the wheel that holds the pockets
Ball trackThe groove under the rim where the ball circles
Wheel chipsColored chips valid only at one roulette table
House edgeThe casino's average share of every bet: 2.70% or 5.26%

Named bets on parts of the wheel, such as voisins du zero, are covered on call bets.

Is roulette a game of skill?

No. Every spin is independent, and the average cost per bet depends only on which wheel you sit at. What you can control is cost and risk: choose a single zero table, size bets to your bankroll, and stop at a point you chose in advance. Curious how it feels? Open the roulette simulator and play a few dozen rounds on credits.

Questions players ask

What does roulette mean?

It is French for little wheel, from roue, meaning wheel. In everyday English it also means any choice left to chance.

Who invented the roulette wheel?

No single inventor is known for certain. It grew up in France over two centuries back, borrowing from older wheel and lottery style pastimes.

Can a roulette dealer control the ball?

Not in any reliable way. The ball bounces off deflectors and pocket dividers before it settles, and casinos often require dealers to vary spins. Results are monitored, and any odd pattern would be checked.

How do you spell roulette?

R, o, u, l, e, t, t, e, with two t's and an e at the end. It is pronounced roo-LET.

What is the roulette dealer called?

The dealer is often called a croupier, a French word. The dealer spins the wheel and ball, calls no more bets, marks the winner and pays out.

What is a roulette ball made of?

Casino balls are made of a hard non metal material such as resin or teflon. Older balls were made of ivory or wood.