Surebets Calculator
Enter your decimal odds and the total stake. We split stakes so the payout is equal for each outcome. If Sum(1/odds) < 1, there is an arbitrage (surebet) and a guaranteed profit.
Enter valid decimal odds (> 1.00) and a total stake to see the stake split and profit.
How does the surebet calculator work?
This tool distributes your total stake proportionally to the inverse of each decimal odd (1/odds) so that the payout is equal for all outcomes. If the sum of implied probabilities is below 1, you lock in a guaranteed profit.
2‑way vs 3‑way surebets
Use 2‑way for markets with two outcomes (e.g., Over/Under, Tennis match winner) and 3‑way for markets with three outcomes (e.g., 1X2 in football: Home/Draw/Away). The calculator adapts inputs and stake split accordingly.
Example calculation
Suppose you have a 2‑way market with odds 2.10 and 1.95 and a total stake of €100. The implied probabilities are 1/2.10 ≈ 0.4762 and 1/1.95 ≈ 0.5128, summing to 0.9890. Because it’s below 1, this is an arbitrage. The stakes will be split so both outcomes return the same payout, and the difference between that payout and €100 is your profit.
Tips to maximize ROI
- Always use decimal odds and double‑check inputs before placing bets.
- Account for bookmaker margins, fees, and currency conversions.
- Round stakes carefully; some books limit decimals for bet sizes.
- Place all legs quickly to reduce the risk of odds moving.
- Diversify across bookmakers to avoid limits on your account.