Arbitrage Calculator: Arb Stakes and Profit
Select Odds Type:
Enter Odds and Wager Amount:
$
Results:
Total Payout: $
Total Profit: $
ROI: %
| Bet | Stake | Payout |
|---|---|---|
| Bet 1 | ||
| Bet 2 |
What it does
Arbitrage means betting every outcome at different books so you profit whatever happens. This arbitrage calculator splits your stake so every outcome pays the same. If the prices add up to 100% or more there is no arb, and you see the market's vig and hold instead. Related: how to find arbitrage bets, the best arbitrage betting tools and what a middle is and how to find one.
How to use
Enter the odds for each outcome. Use + to add more.
Enter your total stake and click Calculate Arbitrage.
Check both prices are still live, then place each stake at its book.
Worked example
+150 at Book A, -120 at Book B
Total stake: $100.
- Implied chances
- 40.00% + 54.55% = 94.55%
- Stake at Book A
- $42.31
- Stake at Book B
- $57.69
- Payout either way
- $105.77
- Profit
- $5.77 (5.77% ROI)
FAQ
How do I use an arbitrage calculator?
Enter the best price on each side from different sportsbooks and your total stake. If the implied chances add up to under 100%, it splits the stake so every outcome pays the same: +110 and +105 add up to 47.62% + 48.78% = 96.40%, a 3.73% profit.
What is an arbitrage bet?
Prices on every outcome, at different books, whose implied probabilities add up to under 100%. Staking each side correctly locks in a profit.
How is the stake split calculated?
Each stake is proportional to its outcome's implied probability (1 / decimal odds), so every outcome returns the same amount.
Why do arbitrage opportunities disappear so quickly?
Books move stale prices toward the market as sharp money arrives. Most arbs last minutes at best.
What are the practical risks?
A price moving before you place the second bet, a book voiding one side, and limits on accounts that only bet arbs.