Arbitrage Calculator
Enter decimal odds for every possible outcome to calculate the implied probability, suggested stake allocation, potential return and profit.
1. Set your market
Home win
Draw
Away win
Use odds for the same event, market and settlement rules. All outcomes must be covered for the calculation to be meaningful.
2. Calculation results
Suggested stake allocation
| Outcome | Bookmaker | Odds | Suggested stake | Gross return |
|---|
*The return is a mathematical estimate assuming the entered odds remain available, all bets are accepted, every outcome is settled as expected, and no extra fees or deductions apply. Rounded stakes can create small differences.
Arbitrage calculations are estimates based on the odds entered. Confirm that all odds are current, the same market and settlement rules apply, and each bookmaker accepts the intended stake. Odds changes, rejected bets, fees, and rounding can eliminate the expected profit. Profit is not guaranteed.
How arbitrage works
An arbitrage opportunity may exist when the sum of the reciprocal decimal odds for all possible outcomes is below 1 (100%). The calculator allocates your total stake in proportion to each outcome's implied probability so the theoretical gross return is approximately equal across outcomes.
Odds can change, and bookmakers may apply limits, void rules or other settlement conditions. This tool does not guarantee a real-world profit. Check local laws and bet responsibly.