Arbitrage Calculator
Lock guaranteed profit by covering all outcomes across books from the entered prices.
How to Use This Calculator
- Input the odds for every outcome, sourced from the separate bookmakers offering them
- Input your total stake (the capital you intend to deploy)
- Append additional outcomes where required (for 3-way markets such as soccer)
- When an arbitrage edge is present, the tool returns the optimal stake allocation per outcome plus the locked-in profit
Formula
Arbitrage Check: Sum of (1 / Odds) for all outcomes < 1
Arbitrage Percentage = (1 - Sum of Inverses) × 100%
Individual Stake = Total Stake × (1 / Odds_i) / Sum of Inverses
Guaranteed Profit = Total Stake × Arbitrage Percentage / (1 - Arbitrage Percentage)
Frequently Asked Questions
How does arbitrage betting work?
Arbitrage betting (also termed surebetting) means staking on every possible outcome of an event across different bookmakers, which locks in a profit no matter the result. The method capitalizes on pricing discrepancies between bookmakers.
What's the method for locating arbitrage opportunities?
Cross-reference the odds for the same event across several bookmakers. An arbitrage opportunity is present whenever the sum of the inverse odds (1/odds) across all outcomes resolves to less than 1.
Is arbitrage betting permitted?
In most jurisdictions arbitrage betting is legal. That said, bookmakers may restrict or close accounts they flag as arbitrage activity, since the practice targets their pricing inefficiencies.
What profit margin should I expect from arbitrage?
The majority of arbitrage opportunities yield margins in the 1-5% range. Wider margins are uncommon but do occur, particularly when odds first go live or during line movements.