Select a bet type and see exactly which numbers it covers, what it pays, and the house edge on both a European (2.70%) and an American (5.26%) wheel, the same figures from the roulette guide, but shown against the actual layout instead of a table of text.
Pick a wheel and a bet to see the numbers it covers, the payout, the true odds and the house edge.
What the visualizer shows
The layout it draws from mirrors a standard physical roulette table: a numbered grid down the middle for inside bets, with the colour/parity/range and dozen/column bets arranged around its edge. Nothing about the digital presentation changes the underlying geometry a player would see at a real table, which is the point, the goal is to make the physical layout legible, not to reinvent it.
Clicking a bet, straight up, split, street, corner, six line, dozen, column or one of the even-money outside bets, highlights the numbers it covers directly on the layout, alongside its payout and true odds. The full logic behind each bet type and why payouts fall short of true odds is covered in Roulette Bets Explained; this tool is the visual companion to that math. Where the guide describes a bet in words, this page shows the same bet as it would sit on a real table, chip for chip.
Seeing a bet’s coverage on the actual layout tends to make the inside-versus-outside distinction click faster than reading a description of it. A street bet’s three-number row and a six-line bet’s two adjacent rows look obviously different once highlighted, even though both are described the same way in words: “an inside bet covering multiple numbers.” The visual layer is doing work that a table of numbers can’t quite replicate.
How to read the result
Toggling between European and American wheel changes the true odds shown for a given bet, even though most payouts stay the same across both, the extra 00 pocket on the American wheel is the entire reason the numbers move. Where called bets like Voisins du Zéro are included, selecting one shows the wheel-position grouping of numbers rather than a grid-based selection, reflecting how those bets are actually placed at a physical table.
A useful comparison to run deliberately: select the same bet shape on both wheel types back to back and watch only the true-odds figure change while the payout stays fixed. That’s the entire mechanism behind the gap between 2.70% and 5.26% made visible in one click, instead of something to take on faith from a written explanation.
The exception worth checking specifically
One selection is worth trying on purpose rather than stumbling into: the American wheel’s five-number bet, covering 0, 00, 1, 2 and 3. It’s the single bet on the layout where switching from a grid-based selection to this specific grouping produces a noticeably worse edge than every other bet on the same table, as covered in Roulette Bets Explained. Selecting it and comparing its edge figure against a straight-up bet on the same wheel is a fast way to see that not every American-wheel bet shares an identical 5.26% edge, this one doesn’t, and the visualizer shows exactly why by highlighting how its payout and coverage don’t line up as cleanly as the other bets do.
Limits and assumptions
The visualizer assumes standard payout rules unless a bet is specifically marked otherwise; the la partage rule, which returns half an even-money bet on a zero, applies only at tables that offer it, not universally across every European wheel, where the visualizer doesn’t explicitly flag a rule as active, treat the figure shown as the standard, un-modified edge for that bet. For how these same numbers stack up against blackjack, craps and other games, not just against each other, see the House Edge Explorer, and for the licensing and testing behind the wheel itself, see How Online Casinos Work. Readers comparing table games generally may also want the Blackjack Strategy Trainer, which covers the same limits-and-assumptions territory for a game whose decisions actually change the edge, not a wheel that never does. Trying both back to back is a fast way to feel the difference between a game with a correct decision and a game with none.
Frequently Asked Questions
What does the visualizer show for each bet?
Selecting a bet type highlights exactly which numbers it covers on the layout, along with the payout offered and the true odds and house edge for that bet on both a European and an American wheel, using the same figures set out in the roulette guide.
Why do the numbers change when I switch wheel types?
An American wheel adds a second zero pocket that a European wheel doesn't have, which changes the true odds behind every bet without changing most of the payouts. That's the entire source of the gap between the two wheels' house edges.
Can I use the visualizer to check a called bet like Voisins du Zéro?
Yes, where the tool includes European called bets, selecting one highlights the wheel-position-based grouping of numbers it covers, distinct from the grid-based inside and outside bets covered elsewhere in the tool.
Does the visualizer account for the la partage rule?
Only where a bet is explicitly marked as using it. La partage, which returns half an even-money bet on a zero result, is a table-specific rule rather than a universal one, so results assume standard payout rules unless the tool states otherwise.