I Odds
Roulette odds and house edge: every bet on 37, 38 and 39-pocket wheels
The house edge is 2.70% on a single-zero wheel, 5.26% with double zero and 7.69% with triple zero. Full odds table for every standard bet.
9 November 20266 min read
Guides from The Wheel Desk
The wheel, explained.
Plain-English guides to roulette on crypto sites: pocket odds and house edge, colour-wheel variants, betting systems, deposits and withdrawals, and how to verify a provably fair spin yourself. Every figure is worked through and re-computed.
Pocket 31 — the result of the fictional spin we verify step by step in our provably fair guide.
Latest guides
III Crypto
Crypto roulette and colour-wheel variants: how to work out the house edge
Many crypto and skin sites use 15-pocket red/black/green wheels instead of the classic layout. Here's how to calculate their house edge from the pay table.
9 November 20265 min read
II Systems
Roulette betting systems simulated: Martingale, d'Alembert and Fibonacci
We ran 10,000 simulated sessions of Martingale, d'Alembert, Fibonacci and flat betting. None changed the house edge; they only reshaped wins and busts.
9 November 20266 min read
III Crypto
Crypto deposits and withdrawals for roulette: networks, fees and mistakes
How crypto deposits and withdrawals work on gambling sites: picking the right network, what fees and confirmations cost you, and the mistakes that lose funds.
9 November 20265 min read
IV Fairness
Provably fair roulette: from a hash to a pocket, and how to verify a spin
Provably fair roulette turns seeds and a nonce into a hash, then maps the hash to a pocket. A fully worked, fictional example you can recompute yourself.
9 November 20265 min read
The one table to remember
Every standard bet on a given wheel carries the same edge. Adding zeros is what makes it worse.
| Wheel | Pockets | House edge | Expected cost per 100 units staked |
|---|---|---|---|
| Single zero (European) | 37 | 2.70% | 2.70 |
| Double zero (American) | 38 | 5.26% | 5.26 |
| Triple zero | 39 | 7.69% | 7.69 |
Chapters
IOdds & house edgePocket counts, payouts and the house edge on every bet, worked through with numbers you can check.IIBetting systemsMartingale, d’Alembert, Fibonacci and friends: what they change, what they can’t, and simulations to prove it.IIICrypto & variantsCrypto deposits and withdrawals, network fees, and the colour-wheel variants found on crypto and skin sites.IVProvably fairSeeds, hashes and nonces: how a hash becomes a pocket, and how to verify a spin yourself.
What this site is — and isn't
We explain how roulette works and how to check the numbers yourself. We don't rank sites, name operators or promise wins. No betting system, bet type or coin changes the house edge. Roulette is gambling: over time you should expect to lose the money you stake. 18+ only. Responsible gambling