Arbitrage Betting Calculator
Guaranteed profit covering all outcomes across books.
How to Use This Calculator
- Input the odds for each outcome, sourced from the separate bookmakers offering them
- Input your total stake (the capital you intend to deploy)
- Append further outcomes where required (3-way markets such as soccer)
- Where an arb exists, read off the optimal per-outcome stake 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
Define arbitrage betting.
Arbitrage betting (surebetting) means covering every possible outcome of an event across different bookmakers, locking a profit irrespective of the result. It capitalizes on price discrepancies between books.
How are arbitrage opportunities identified?
Compare odds for the same event across multiple bookmakers. When the sum of the inverse odds (1/odds) across all outcomes falls below 1, an arbitrage opportunity is present.
Is arbitrage betting legal?
Arbitrage betting is legal across most jurisdictions. That said, bookmakers may restrict or shut accounts of suspected arbers, since the practice exploits their pricing inefficiencies.
What profit margin is typical for an arb?
The bulk of arbitrage opportunities yield 1-5% margins. Wider margins occur but are uncommon, surfacing mainly when odds first open or during line movements.