Arbitrage Bet Helper
Cover every outcome across bookmakers for a guaranteed profit — just add the odds.
How to Use This Calculator
- Type in the odds for each outcome, taken from the different bookmakers you’re comparing
- Enter your total stake (the amount you’d like to put to work)
- Need more outcomes? Add them here (handy for 3-way markets such as soccer)
- When an arbitrage chance is present, you’ll see the best stake to place on each outcome along with your 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 exactly is arbitrage betting?
Arbitrage betting (sometimes called surebetting) means covering every possible outcome of an event by using different bookmakers, which secures a profit no matter what happens. It works by taking advantage of the price gaps between bookmakers.
How can I spot an arbitrage opportunity?
Look at the odds for the same event across several bookmakers. If you add up the inverse of each price (1/odds) for all outcomes and the total comes to less than 1, you’ve found an arbitrage opportunity.
Is arbitrage betting actually legal?
In most places, arbitrage betting is perfectly legal. That said, bookmakers might restrict or shut down accounts they suspect of arbing, since the strategy takes advantage of gaps in their pricing.
What kind of profit margin is typical with arbitrage?
Most arbitrage chances come with margins of 1-5%. Bigger margins do show up now and then, particularly when odds are first posted or when the lines start moving.