An arbitrage bet, or arb, happens when two bookmakers price the same event so differently that backing both outcomes guarantees a profit no matter who wins. This calculator takes the two opposing odds and your total budget, converts them to decimal, and checks whether the combined implied probability is under 100 percent. If it is, an arbitrage exists and the tool shows exactly how to split your stake across the two sides so each outcome returns the same amount, along with the locked in profit and margin. If the market is efficient it will say so. Enter odds in American or decimal form to test any two way market. All calculations run entirely in your browser.
An arbitrage bet, or arb, happens when two bookmakers price the same event so differently that backing both outcomes guarantees a profit no matter who wins. This calculator takes the two opposing odds and your total budget, converts them to decimal, and checks whether the combined implied probability is under 100 percent.
Yes. Arbitrage Betting Calculator is completely free, with no sign-up and no usage limits.
Yes. Arbitrage Betting Calculator runs in any modern web browser. There is nothing to download or install.
Yes. Arbitrage Betting Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.