Arbitrage Tool
Find guaranteed profit by backing every outcome across bookmakers — just enter the odds.
How to Use This Calculator
- Input the odds for each outcome, sourced from different bookmakers
- Input your total stake (the amount to invest)
- Add outcomes as needed (for 3-way markets such as soccer)
- When an arb exists, the tool shows the optimal stake per outcome and 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
What does arbitrage betting mean?
Arbitrage betting (surebetting) means covering every outcome of an event across different bookmakers to lock in a profit no matter the result. It works by exploiting price gaps between bookmakers.
How are arbs identified?
Check the same event across several bookmakers. Add up the inverse odds (1/odds) for all outcomes. If that sum comes to less than 1, an arbitrage opportunity is present.
Is arbitrage betting allowed?
It is legal in most jurisdictions. That said, bookmakers may restrict or shut accounts they suspect of arbing, since it takes advantage of their pricing errors.
What profit margin is typical for arbs?
Most arbs return 1-5% profit. Bigger margins are uncommon but do appear, particularly right after odds open or during line movements.