The physical unit every roulette player handles first
A roulette table does not use the same cash-value chips as the blackjack or craps tables around it. When you buy in at a roulette table, the dealer hands you chips that have no denomination printed on them. They are yours for that table, that session, and that colour only. The moment you walk away, they are worthless anywhere else in the building until you cash them back at that same table.
Those chips are grouped into stacks, and the stack is the unit the dealer uses to count, pay and police the layout. The question of what a stack is a group of has a simple answer at the physical level and a more interesting one at the table-logic level.
A stack is a group of 20 roulette chips. That is the standard count a dealer builds when you buy in, and it is the count the dealer uses when paying most inside bets. The stack is not a monetary amount by itself. Its value depends entirely on the chip value you chose when you bought in, which is why the dealer asks you what denomination you want before the first spin.
Why roulette chips are not like other casino chips
On most table games, a chip's value is printed on it and matches the colour scheme across the whole casino. Roulette breaks that pattern deliberately. Each player at a roulette table receives a unique colour so the dealer can tell at a glance which bets belong to which player. Two players can sit side by side, both betting on red 17, and the dealer still knows whose winning stack to pay because the chips are different colours.
This has a consequence new players often miss: your roulette chips have no printed value, so the dealer must remember what your colour is worth. The dealer tracks this with a small marker called a lammer placed on the chip tray, showing your colour and the value you were assigned. If you step away and come back, the dealer uses that marker to pay you correctly.
The chip value you choose is a per-unit decision, not a casino-wide one. One player might ask for chips worth 1 unit each, the next for 5, the next for 25. A stack of 20 is therefore worth 20 units, 100 units, or 500 units depending on the colour you hold. The stack size stays constant; the stack value changes with your buy-in choice.
How a stack breaks down at the table
Dealers build stacks of 20 because the number divides cleanly into the payout arithmetic that roulette requires. Inside bets on a European wheel pay at odds that are easy to express in whole stacks or half-stacks. A straight-up win pays 35 to 1, which a dealer pays as one full stack of 20 plus 15 chips. A split pays 17 to 1, a street 11 to 1, a corner 8 to 1. The dealer's hands move in stack-sized units because the math was built around them.
Outside bets sit outside this chip system. When you bet on red, black, odd, even, high, low, dozens or columns, you use standard cash-value chips, not your colour chips. A player who wants to bet both inside and outside during the same spin is handling two different kinds of chips at once, which is one of the small procedural confusions that slows new players down.
| Chip type | Printed value | Where it works | What happens when you leave |
|---|---|---|---|
| Colour roulette chips | No printed value; assigned at buy-in | Inside bets only, on that table | Must be cashed at the same table |
| Standard cash chips | Value printed on the chip | Outside bets, and other table games | Usable anywhere in the casino |
The sequence of a round, from buy-in to settlement
You sit down, place cash on the felt, and tell the dealer the chip value you want. The dealer counts out stacks of 20 in your colour and slides them to you. You then bet by placing chips directly on the layout. The dealer spins the wheel, sends the ball the opposite way, and calls no more bets before the ball drops. Losing bets are swept first. Winning bets are paid next, and the original winning chip stays on the layout until you pick it up or the next spin begins.
That last point matters. On a winning inside bet, the dealer pays your profit and leaves your original chip in place. It is still your bet. If you do not want it riding on the next spin, you must remove it yourself before the dealer closes betting. New players sometimes think the dealer will return it, or that the payout includes it. It does not. The payout is the profit; the original chip is separate and remains live.
What each decision point means
Roulette has fewer decision points than most table games, but each one changes the rate at which your bankroll is expected to erode. The first decision is chip value. It sets the minimum unit you can bet inside, and it is easy to choose a value that makes every spin more expensive than you intended. The second decision is inside versus outside. Inside bets pay more when they hit and lose more often; outside bets pay even money or 2 to 1 and hit more frequently. The third decision is wheel type, which is usually made for you by which table you sit at.
The wheel type is the single largest structural difference between two roulette tables. A European wheel has 37 pockets and a single zero. An American wheel has 38 pockets and both a single and double zero. The extra pocket on the American layout is not a cosmetic difference. It increases the house edge on every bet that pays at the same odds, because the payout schedule does not change to compensate for the extra losing number.
| Wheel | Pockets | Zero pockets | Effect on the player |
|---|---|---|---|
| European | 37 | 1 | Lower house edge for the same bets |
| American | 38 | 2 | Higher house edge for the same bets |
Some European tables also offer a rule variation called la partage or en prison, where an even-money bet that loses to zero is returned or held for the next spin. That rule changes the expected loss on those specific bets. It does not change the wheel's structure, and it does not apply to inside bets. When a table advertises such a rule, it applies only to the bets named in the rule, not to the whole layout.
The main bet types and why their edges differ
Every roulette bet is a negative-expectation bet. The house edge comes from the gap between the odds the casino pays and the true odds of the outcome. On a European wheel, a straight-up bet on one number has a true chance of 1 in 37, but the casino pays 35 to 1. If the odds were fair, the payout would be 36 to 1. That one-unit shortfall, repeated over every spin, is the edge.
The same arithmetic applies to every inside and outside bet on the layout. The payout odds are all built around 36 paying positions, while the wheel carries 37 or 38 pockets. That is why the edge is uniform across most roulette bets on a given wheel, and why the American wheel is more expensive across the board: the payout schedule still assumes 36 losing positions, but the wheel now has 37 or 38.
| Bet | Numbers covered | Payout | What changes |
|---|---|---|---|
| Straight-up | 1 | 35 to 1 | Rare hits, largest single payout |
| Split | 2 | 17 to 1 | Twice the coverage, lower payout |
| Street | 3 | 11 to 1 | Three-number row |
| Corner | 4 | 8 to 1 | Four-number square |
| Six line | 6 | 5 to 1 | Two adjacent rows |
| Red/black, odd/even, high/low | 18 | 1 to 1 | Most frequent hits, smallest payout |
| Dozens, columns | 12 | 2 to 1 | Middle ground between inside and even-money |
No betting pattern changes the built-in edge. A player who spreads chips across many numbers is buying more chances to win on a single spin, but each chip still carries the same shortfall. A player who doubles a losing bet is redistributing outcomes: more frequent small wins, rarer large losses. The long-run expected loss per unit wagered stays the same.
Procedural mistakes that cost new players time and money
The first mistake is treating colour chips as if they were cash. A player who wins a stack, pockets it, and walks to the cage will be sent back to the table. Colour chips are redeemed only at the roulette table where they were issued. If you leave the table without cashing them, you are carrying plastic that has no value at the cage, the bar, or any other table.
The second mistake is betting inside with cash chips after buying colour chips. The dealer will not accept a cash chip on an inside number, because there is no way to tell whose bet it is. The result is a confused exchange while the wheel is about to spin. If you want to bet inside, use your colour chips. If you want to bet outside, use cash chips or ask the dealer to convert.
The third mistake is leaving a winning original bet on the layout without realising it is still live. The dealer pays the profit and leaves the original chip. If the next spin starts and you did not intend to rebet, that chip is in play. Watch the layout after every payout and pick up anything you do not want riding.
How to read the table before you sit down
The table itself carries most of the information you need. The layout shows every bet and its payout. A sign or placard states the table minimum and maximum. The wheel tells you whether you are on a European or American layout. The chip tray and the dealer's lammer tell you what colours are already in play and what values they carry.
If you want to know the exact house edge for a specific bet on a specific wheel, the arithmetic is public and stable: compare the payout odds printed on the layout against the number of pockets on the wheel. The rule variations, such as la partage, are stated on the table signage or available from the dealer. None of this requires trusting the casino's marketing; the wheel and the layout are visible, and the math follows from them.
FAQ
How many chips are in a standard roulette stack?
A standard roulette stack is 20 chips. Dealers build stacks of 20 when you buy in, and they use the same count when paying most inside bets. The stack's cash value depends on the chip denomination you chose at buy-in.
Can I use my roulette chips at another table?
No. Roulette colour chips are issued for one table and one player. They carry no printed denomination and are redeemed only at the table where you received them. Cash chips, used for outside bets, work elsewhere in the casino.
Why does the dealer ask what value I want for my chips?
Because roulette chips have no printed value. The dealer assigns a per-chip value to your colour and tracks it with a marker on the chip tray. That value determines what each 20-chip stack is worth when you bet and when you are paid.
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This article is general information about how these mechanics work. It is not legal advice and not a recommendation to gamble or to use any particular operator. Availability and legality differ by jurisdiction — check the rules that apply where you are.