Learning About Roulette: The Impact of the House Edge in American Roulette

American roulette has 38 pockets, including 0 and 00. This double-zero layout gives the house a higher mathematical advantage than single-zero roulette.

The difference can seem small on an individual spin, but it becomes more significant as the total amount wagered and the length of an online casino session increase. 

Understanding the house edge therefore gives Genting Casino players a clearer view of the financial risk involved. Dive deeper through the following points:

• What Is the House Edge?
• How the American Roulette House Edge Works
• Why Is the House Edge Higher?
• American Roulette Compared with Other Variants
• How the House Edge Can Affect a Bankroll
• Strategies for Managing Losses

What Is the House Edge?

The house edge is the mathematical advantage built into a casino game. It represents the theoretical percentage of wagers that the casino expects to retain over a very large number of plays, based on the game's rules.

It is not a prediction of what will happen during an individual session. A player can win or lose in the short term, while the house edge describes the long-term mathematical expectation.

For standard American roulette bets, the house edge is 5.26%. The five-number bet covering 0, 00, 1, 2 and 3 has a higher house edge of 7.89%.

How the American Roulette House Edge Works

The double zero is the main reason for the higher house edge.

American roulette has 38 possible outcomes, but standard payouts are based on a wheel where the additional 0 and 00 are not fully reflected in the winning payouts.

For standard even-money bets, there are 18 winning numbers and 20 losing outcomes. This means a red or black wager has a 47.37% probability of winning rather than an even 50%.

The same principle applies to other standard bets. The extra zero pockets create additional outcomes that do not belong to the player's chosen group.

Why Is the House Edge Higher?

American roulette has a higher house edge because it contains two green pockets instead of one.

Roulette Variant	Wheel	Standard House Edge
American Roulette	38 pockets, including 0 and 00	5.26%
European Roulette	37 pockets, including 0	2.70%
French Roulette	37 pockets, including 0	2.70%*

*Qualifying even-money bets under La Partage or En Prison can have an effective house edge of around 1.35%, depending on the specific rules.

The additional pocket in American roulette, therefore, more than doubles the standard house edge compared with a single-zero wheel.

American Roulette Live by Evolution

American Roulette Compared with Other Variants

The difference is easier to understand by looking at the wheel structure.

Feature	American Roulette	European Roulette	French Roulette
Total pockets	38	37	37
Zero pockets	0 and 00	0	0
Standard house edge	5.26%	2.70%	2.70%
Special zero rules	Generally no	Generally no	May include La Partage or En Prison

The lower house edge of single-zero roulette does not mean that winning is guaranteed. All roulette variants remain games of chance, and the house retains a mathematical advantage under their standard rules.

How the House Edge Can Affect a Bankroll

A house edge can gradually reduce a bankroll because the mathematical advantage applies to the total amount wagered over time.

This is particularly important when a player continues for longer sessions or repeatedly increases their wagers. More play creates more opportunities for the mathematical house edge to affect the overall result.

The house edge does not mean that a specific percentage will be lost during every session. Short-term results can vary considerably. However, it does mean that there is no mathematical expectation of overcoming the casino's advantage through continued play.

This applies whether someone is using online roulette or live roulette through a live casino or online casino platform.

Genting Casino Tip: Before playing American roulette, check the wheel type and game information, then set your personal financial and time limits in advance. These steps do not improve the odds, but they can help keep gambling within predetermined boundaries.

Strategies for Managing Losses

There is no strategy that can remove the American roulette house edge. However, players can use safer approaches to manage their gambling activity and reduce the risk of spending more than intended. 

Set a Financial Limit	Decide how much can be spent before starting and treat this as a firm limit. Do not increase it to recover losses. The UK Gambling Commission requires gambling systems to provide customers with facilities to set financial limits and states that these should be easily accessible.
Avoid Chasing Losses	A losing spin does not make a future win more likely. Increasing wagers to recover losses can increase financial exposure without changing the probability of the next result.
Consider the Wheel Type	Checking whether a roulette game uses a single-zero or double-zero wheel helps clarify the mathematical house edge before playing.
Avoid High House-Edge Bets	The five number bet has a 7.89% house edge, higher than the 5.26% edge on most standard American roulette bets. Understanding this difference can help players recognise which wagers carry greater mathematical risk.
Keep Sessions Within Your Limits	Time can affect how much is wagered overall. Setting a time boundary alongside a financial limit can help prevent a short session from becoming longer than planned.

Understanding the House Edge

The 5.26% standard house edge in American roulette comes directly from its 38-pocket, double-zero wheel. This is substantially higher than the standard 2.70% house edge of single-zero roulette, while certain French roulette rules can reduce the effective edge on qualifying bets.

At Genting Casino, understanding these mathematical differences can help readers make informed decisions about roulette while keeping responsible gambling at the centre of any activity.

The house edge is an important reminder that American roulette is not a reliable way to make money. No betting system, pattern or staking method can remove the mathematical advantage created by the double-zero wheel. Responsible gambling means keeping gambling within affordable limits, not chasing losses and taking breaks when needed. The UK Gambling Commission recommends controlling the time and money spent gambling and provides information about tools such as financial limits, activity history and self-exclusion. If gambling begins to affect finances, relationships or everyday life, stopping and seeking appropriate support is more important than trying to recover losses.

FAQs

What is the house edge in American roulette?

The standard house edge is 5.26%. The five-number bet has a higher house edge of 7.89%.

Why is American roulette's house edge so high?

The wheel contains both 0 and 00, giving it 38 possible outcomes instead of the 37 found on a single-zero wheel.

Can a roulette strategy overcome the house edge?

No. Betting systems and staking methods cannot change the mathematical probabilities built into the game.

Does the house edge mean a player will lose a set percentage every session?

No. The house edge is a long-term mathematical measure, not a prediction of an individual session's result.

How can players manage the financial risk?

Setting financial and time limits, avoiding loss chasing and understanding the house edge can help players keep gambling within predetermined boundaries. Responsible gambling tools can also provide additional control.