Arbitrage and hedge calculator
Web onlyEnter odds and stakes for both outcomes to see arb percentage, payouts, and profit on either result.
▲$8.69
$100 at +150 and $141.30 at −130 lock $8.69 either way, 3.60% on $241.30.
- Side 2 stake
- $141.30
- Total staked
- $241.30
- Side 1 pays
- $250.00
- Side 2 pays
- $249.99
- Arb percentage
- 3.60%
- Locked ROI
- 3.60%
- Prices add to
- 96.52%
Side 1
Side 2
Side 2's stake follows side 1 for the same payout. The calculator in Arbs does this with live prices.
How to use the arbitrage and hedge calculator
This sports betting arbitrage calculator checks two opposing prices for an arb, then measures the profit the stakes entered for each bet return either way, if both bets stand.
- 1Enter the odds and stake for the first side of the market.
- 2Enter the opposing odds and stake from the second sportsbook or prediction market.
- 3Check arb percentage, both payouts, and locked profit before placing either bet.
Formula and assumptions
Arb percentage = 1 / (1 / decimal odds A + 1 / decimal odds B) - 1.
Both bets must be accepted at the entered prices and settle under compatible rules. Limits, voids, and price changes can remove the profit.
The math in full, with worked examples: Sports betting arbitrage: how arbs work
Questions
Answers about this free arbitrage and hedge calculator, sports betting odds, payouts, and the math behind each result.
- It converts both betting odds to decimal prices, adds their implied probabilities, and calculates the best possible ROI when the stakes are balanced.
- Adjust each wager until the payout is close on both outcomes. Confirm sportsbook limits, market rules, and current odds before placing either side.