{"id":4986,"date":"2026-03-21T11:15:52","date_gmt":"2026-03-21T11:15:52","guid":{"rendered":"https:\/\/www.chiefgambler.com\/uk\/?p=4986"},"modified":"2026-05-06T14:58:10","modified_gmt":"2026-05-06T13:58:10","slug":"single-zero-vs-double-zero-roulette-house-edge-odds-explained","status":"publish","type":"post","link":"https:\/\/www.chiefgambler.com\/uk\/single-zero-vs-double-zero-roulette-house-edge-odds-explained\/","title":{"rendered":"Single Zero vs Double Zero Roulette: House Edge &#038; Odds Explained"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Roulette is a staple at many casinos, and the single zero and double zero wheels often sit side by side. They look alike, yet that extra pocket changes how the game adds up.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This blog post compares the two versions in plain terms, focusing on <a href=\"https:\/\/www.chiefgambler.com\/uk\/casino-house-edge\/\">house edge<\/a>, odds and payouts. You will also see how wheel layout shapes the maths, what expected loss per spin looks like in pounds and pence, and which common claims do not stack up.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">By the end, you will have a clear picture of how the games differ and what that means for your choices. So, what actually separates the two wheels in practice?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is The Difference Between Single Zero And Double Zero Roulette?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Single zero roulette, often called European roulette, uses a wheel with one zero (0) among the numbered pockets. Double zero roulette, typically known as American roulette, features both a zero (0) and a double zero (00).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The single zero wheel has 37 pockets in total, while the double zero wheel has 38. The addition of the double zero changes the probabilities for all bets placed during a game.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These differences in design mean the two games have different house edges and the same headline payouts can lead to different outcomes over time. Each spin is random and independent.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This design gap feeds directly into the house edge, which is where the difference really shows.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Much Is The House Edge On Single Zero Versus Double Zero?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The house edge is the percentage of each bet the casino expects to keep over time. In roulette, the number of zeros on the wheel sets this percentage.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Single zero roulette has a house edge of approximately 2.7%. On average, the casino keeps \u00a32.70 for every \u00a3100 wagered.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Double zero roulette has a higher house edge, around 5.26%. Here, the casino keeps roughly \u00a35.26 for every \u00a3100 bet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The increase comes from the extra 00 pocket. Payout ratios stay the same for both versions, but the probabilities shift, so the expected return changes. No staking system or bet pattern alters this fixed edge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So, how does that difference show up on individual bets? It comes through in the odds and payouts.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Odds And Payouts For Common Bets<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Understanding how odds and payouts work helps you see what each wheel offers in real terms. The payouts look the same across both versions, but the chances of landing them differ because one wheel has an extra pocket.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How Straight, Split And Outside Bets Compare On Each Wheel<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A straight bet is placed on a single number. It pays 35 to 1 on both wheels. The chance of winning is 1 in 37 on single zero (about 2.70%) and 1 in 38 on double zero (about 2.63%).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A split bet covers two numbers with one chip. This pays 17 to 1 on both. The probability is 2 in 37 on single zero and 2 in 38 on double zero, so again slightly better on the single zero wheel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Outside bets, such as red or black, even or odd, and high or low, pay 1 to 1. Because neither zero counts as red, black, even or odd, the chance of winning an even\u2011money bet is 18 in 37 on single zero (about 48.65%) and 18 in 38 on double zero (about 47.37%).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Those figures explain why the house edge differs: payouts are identical, but the extra pocket reduces the chance of each win. To see why that pocket matters, it helps to look at the wheel itself.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How Does The Wheel Layout Change The Maths?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The number of pockets sets the probability of every outcome. A single zero wheel features 37 pockets, including one zero, while a double zero wheel has 38 pockets because it includes both a zero and a double zero.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That extra pocket means each individual number is less likely to land on the double zero wheel. For example, a specific number has a 1 in 37 chance on single zero, but 1 in 38 on double zero.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The placement of the zeros also affects broader groups of numbers. Even\u2011money bets like red or black do not include 0 or 00, so having two green pockets instead of one slightly lowers the chance of winning those bets.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you turn these percentages into pounds and pence, you get a clear view of expected loss per spin.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Expected Loss Per Spin And How To Compare It Between Wheels<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Expected loss per spin shows how much, on average, a player might lose with each round over a long period. It follows directly from the house edge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If a player makes a \u00a31 bet on a single zero wheel, the expected loss per spin is about \u00a30.027. For the same \u00a31 on a double zero wheel, the expected loss rises to around \u00a30.053. Larger stakes scale those amounts proportionally.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These figures highlight the practical effect of the extra pocket: over time, the double zero version costs more on the same <a href=\"https:\/\/www.chiefgambler.com\/uk\/what-does-stake-mean-in-betting\/\">stake<\/a>. With the basics in place, it is easier to separate fact from fiction.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Are There Any Common Myths About Single Zero Versus Double Zero?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Several myths surround how single zero and double zero roulette work. A frequent claim is that strategies or betting systems can overcome the extra 00 pocket. In reality, the odds are fixed by the wheel, and no staking method changes the underlying maths.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Another myth is that previous spins influence future ones, such as thinking a colour is &#8220;due&#8221; after a run. Every spin is independent. Patterns you notice do not affect what happens next.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Some players also assume one wheel guarantees higher wins. The truth is simpler: payouts are the same, but the double zero wheel carries a higher house edge, so the expected return is lower over time.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you choose to play, set limits that match your circumstances and never stake more than you can afford to lose. If gambling starts to affect your well\u2011being or your finances, seek support early. Independent organisations such as GamCare and GambleAware offer free, confidential help.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing between single zero and double zero comes down to preference once you understand the numbers, but the maths stays the same on every spin.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Roulette is a staple at many casinos, and the single zero and double zero wheels often sit side by side. They look alike, yet that extra pocket changes how the game adds up. This blog post compares the two versions in plain terms, focusing on house edge, odds and payouts. You will also see how [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":4988,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_glsr_average":0,"_glsr_ranking":0,"_glsr_reviews":0,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-4986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-casino"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Single Zero vs Double Zero Roulette: House Edge &amp; Odds Explained - Chief Gambler<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.chiefgambler.com\/uk\/single-zero-vs-double-zero-roulette-house-edge-odds-explained\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Single Zero vs Double Zero Roulette: House Edge &amp; Odds Explained - Chief Gambler\" \/>\n<meta property=\"og:description\" content=\"Roulette is a staple at many casinos, and the single zero and double zero wheels often sit side by side. 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