Arbitrage Bet Calculator

Understanding Arbitrage Betting

Arbitrage betting, also known as a 'surebet', is a strategy that capitalises on the variation in odds offered by different bookmakers. By placing proportional bets on every possible outcome of an event across these bookmakers, a bettor can guarantee a profit regardless of which outcome occurs. This is possible because the set of odds represents an opportunity where the implied probabilities add up to less than 100%, creating a positive expectation for the bettor.

These opportunities are rare and often short-lived, as bookmakers quickly adjust their odds to eliminate them. All UK bookmakers must be licensed by the UK Gambling Commission. Success in arbitrage betting requires speed, diligence, and accounts with multiple online bookmakers. Our Arbitrage Bet Calculator at Calculator Site is an essential tool for quickly identifying these opportunities and calculating the precise stakes needed to lock in a guaranteed return on your investment. For related strategies, explore our Dutching Calculator for spreading stakes across multiple selections, or our Kelly Criterion Calculator for optimal bankroll management.