The wheel is the same; the table is not
If you sit down at a European roulette table and then walk over to a French roulette table, the wheel in front of you has not changed. Both games run on a wheel with 37 pockets, numbered 0 through 36, with a single green zero. The difference lives on the felt, in two printed rules that only apply to even-money bets: la partage and en prison. Those rules do not change which number wins. They change what happens to your stake when the ball lands in zero and you had bet on red, black, odd, even, low or high.
That distinction matters because the zero is the single pocket that gives the house its mathematical advantage on a single-zero wheel. On a plain European table, a zero result takes every even-money bet outright. On a French table, the printed rule may return half your stake, or hold the whole stake in place for the next spin. The wheel is identical, but the rate at which you lose money on even-money bets is not.
How a round plays out on both tables
The sequence of a round is the same on European and French layouts. You buy in at the table, receive coloured chips that are distinct from the cash-value chips used on other tables, and place bets on the layout before the dealer closes betting. The dealer spins the wheel in one direction and sends the ball travelling the other way. When the ball settles, the dealer marks the winning number, clears losing bets, and pays winners. On a French table the dealer may announce the calls in French, and the layout labels are usually French words: impair for odd, pair for even, manque for low, passe for high, rouge for red, noir for black. The mechanics underneath are unchanged.
Where the two games genuinely separate is the settlement of an even-money bet when zero appears. The table below sets out the three possibilities you are likely to meet on a single-zero wheel.
| Rule | What it is | What happens to an even-money bet on zero | Effect on the even-money house edge |
|---|---|---|---|
| No special rule | Plain European roulette | The full stake is lost | Higher |
| La partage | French roulette | Half the stake is returned to the player | Lower |
| En prison | French roulette | The full stake is held for the next spin; it returns if the next spin wins, and is lost if the next spin loses | Lower, roughly comparable to la partage |
La partage is the simpler rule to read: lose half, get half back, the round is over. En prison is the more theatrical one. The dealer places a marker on your chips, and your stake is imprisoned for one spin. If the next spin wins, you get the original stake back with no profit. If it loses, the house takes it. Some tables let you take back half your stake immediately instead of leaving it imprisoned, which turns en prison into la partage at the player's choice.
What the two rules do to the rate of loss
House edge and RTP are complements: they sum to 100% for the same bet under the same rule set. That means a change to the house edge is the same information expressed from the other side. On a single-zero wheel, the zero pocket is the entire reason the house has an edge on even-money bets. A rule that returns half your stake on zero gives back half of that edge on those bets. A rule that imprisons the stake and gives it a chance to survive gives back a comparable amount, though the exact figure depends on how the imprisoned spin is resolved.
The important point is narrower than people often assume. La partage and en prison only touch even-money bets. A straight-up bet on a single number, a split, a street, a corner, a dozen or a column is settled the same way on a European table and a French table. The wheel has the same 37 pockets, the payouts printed on the layout are the same multiples of the stake, and the edge on those bets is unchanged. If you rarely bet red or black, the French rules barely affect you. If you play even-money bets, the printed rule is the single most important piece of text on the table.
Reading the table before you buy in
Do not assume a table is French because the croupier speaks French or the layout uses French words. Do not assume it is European because the wheel has one zero. The rule that matters is printed on the layout or posted at the table, and the wording varies by venue. Look for the phrases la partage and en prison, or an English equivalent such as "half back on zero" or "imprisoned bet". If you cannot see the rule, ask the dealer before you place an even-money bet. The answer changes the expected rate of loss on that bet, and it is a question any dealer can answer in one sentence.
The same caution applies online. A game may be titled French Roulette or European Roulette, but the title is marketing. Open the game's information panel or help screen and look for the rule that applies to even-money bets when zero lands. The game information panel is the document that carries the actual rule set, including whether la partage or en prison is active and on which bets.
Where American roulette fits into the comparison
American roulette is the other common variant, and it is worth placing alongside the two single-zero games because the difference is structural rather than cosmetic. An American wheel has 38 pockets: the numbers 0 through 36 plus a double zero. The extra pocket increases the house edge on every bet on the layout, not just the even-money ones. No la partage or en prison rule is standard on American tables, though an individual venue could offer one. The table below compares the three variants on the points that change how a round settles.
| Feature | European roulette | French roulette | American roulette |
|---|---|---|---|
| Pockets | 37, single zero | 37, single zero | 38, single and double zero |
| Layout language | Usually English | Often French | Usually English |
| Even-money bet on zero | Lost in full | Half returned or imprisoned, depending on the printed rule | Lost in full unless a venue adds a special rule |
| Where the edge difference appears | All bets | Even-money bets only | All bets, higher than single-zero games |
The practical takeaway is that the difference between European and French roulette is not the wheel, the numbers, or the payouts. It is a settlement rule for one class of bets. The difference between either single-zero game and American roulette is the wheel itself.
What a strategy chart can and cannot do
Roulette is not a game where published strategy charts reshape the outcome the way basic strategy does in blackjack. No betting pattern changes the built-in edge of a negative-expectation game, and no progression system removes it. What changes is the rule set you choose to play under. A single-zero wheel with la partage on even-money bets carries a lower expected rate of loss on those bets than the same wheel without the rule. That is a property of the table, not a system the player brings to it.
This is also why any claim about roulette edge should be read against the exact rule set in use. A figure quoted for French roulette assumes the printed rule is active and applies to the bet being discussed. A figure quoted for European roulette assumes no such rule. The game information panel online, or the posted table rules in a venue, is the only place that states the rule set you are playing. Read that before you trust any number.
Procedural mistakes new players make
The first mistake is betting even-money amounts without knowing which zero rule the table uses. The second is assuming the French rule applies to all bets; it does not, and a player who thinks their straight-up bet is protected on zero is reading the table wrong. The third is touching chips after the dealer has called no more bets. Once betting closes, the layout is frozen, and a late hand movement can void a bet or draw a warning. The fourth is confusing the coloured table chips with cash-value chips: coloured chips must be exchanged at the table before you leave, because they carry no value at the cashier's cage.
None of these mistakes changes the mathematics of the wheel. They change how smoothly your session runs and whether you understand what you are betting on. On a French table, the printed rule is part of the bet itself. Read it before the ball moves.
FAQ
Is French roulette better than European roulette?
On even-money bets, a French table with la partage or en prison carries a lower expected rate of loss than a plain European table, because the rule returns value on a zero result. On all other bets the two games are identical. "Better" depends on which bets you make and which rule the specific table prints.
Do online French roulette games always include la partage?
No. The game's title does not guarantee the rule. Open the information panel or help screen and confirm whether la partage, en prison, or neither is active. The rule set in the panel is the one you are playing under, regardless of what the game is called.
Does en prison give you your full stake back after a win?
It returns the original even-money stake only. You do not receive the even-money payout on top, because the imprisoned bet was not a new wager with new risk. If the next spin loses, the imprisoned stake is taken. If the table offers the option, you may take half the stake back immediately instead of leaving it imprisoned.
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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.