Arbitrage Betting Calculator
An arbitrage bet, or arb, happens when two bookmakers price the same event so differently that backing both outcomes guarantees a profit no matter who wins. This calculator takes the two opposing odds and your total budget, converts them to decimal, and checks whether the combined implied probability is under 100 percent. If it is, an arbitrage exists and the tool shows exactly how to split your stake across the two sides so each outcome returns the same amount, along with the locked in profit and margin. If the market is efficient it will say so. Enter odds in American or decimal form to test any two way market. All calculations run entirely in your browser.
How to use Arbitrage Betting Calculator
- Enter the two opposing odds from different books.
- Enter your total stake.
- Read whether an arb exists, the stake split and the guaranteed profit.
Frequently asked questions
What is an arbitrage or sure bet?
It is when two opposing prices let you stake both sides so any outcome returns a profit; it exists only when the combined implied probability is below 100 percent.
How does it split the stakes?
It divides your total stake between the two sides in inverse proportion to their odds so the return is equal whichever side wins, then reports the locked profit.
Why are true arbitrage chances rare?
Books price to avoid them and adjust fast, so genuine arbs are small and short-lived; the tool simply tells you if the two odds you entered qualify.
What is Arbitrage Betting Calculator?
An arbitrage bet, or arb, happens when two bookmakers price the same event so differently that backing both outcomes guarantees a profit no matter who wins. This calculator takes the two opposing odds and your total budget, converts them to decimal, and checks whether the combined implied probability is under 100 percent.
Is Arbitrage Betting Calculator free to use?
Yes. Arbitrage Betting Calculator is completely free, with no sign-up and no usage limits.
Does Arbitrage Betting Calculator work in a web browser?
Yes. Arbitrage Betting Calculator runs in any modern web browser. There is nothing to download or install.
Is my data private with Arbitrage Betting Calculator?
Yes. Arbitrage Betting Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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