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繁體中文How Do Casinos Make Money?
Casinos are businesses, and they make money through a built-in mathematical advantage. This guide explains how, in plain English.
- Through the house edge — a small built-in mathematical advantage on every game that, over many bets, keeps a small percentage of all money wagered.
- In the short term anything can happen, so players do win.
- It means the maths favours the house over time, so play is best treated as paid entertainment with a set budget, not a way to make money.
The house edge
Every casino game has a small built-in advantage called the house edge. Over many bets, this edge means the casino keeps a small percentage of all money wagered.
Volume over time
The edge is tiny per bet but applies to a huge number of bets, so it adds up reliably for the casino over time.
Why players still win
In the short term anything can happen, which is why players do win — the edge only describes the long-run average, not any single session. See gambling myths.
What it means for you
Because the maths favours the house, treat play as paid entertainment, not income, and set a budget. See responsible gambling tools.
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FAQ
Through the house edge — a small built-in mathematical advantage on every game that, over many bets, keeps a small percentage of all money wagered.
In the short term anything can happen, so players do win. The house edge only describes the long-run average, not any single session.
It means the maths favours the house over time, so play is best treated as paid entertainment with a set budget, not a way to make money.
Last updated: 2026-06-15