Surebet Sports Calculator
Work out a sure profit from odds at different bookies.
How to Use This Calculator
- Enter the total amount you want to invest
- Enter the best odds for each outcome from different bookmakers
- For 3-way markets (like soccer), use all 3 default outcome fields
- Add or remove outcomes to match different market types
- If a surebet is on, you’ll get the ideal stake for each outcome plus your guaranteed profit
Formula
Surebet Check: Sum of (1 / Odds) for all outcomes < 1
ROI = (1 / Sum of Inverses - 1) × 100%
Individual Stake = Total Investment × (1 / Odds_i) / Sum of Inverses
Guaranteed Profit = Total Investment / Sum of Inverses - Total Investment
Frequently Asked Questions
What is a surebet?
A surebet (also called an arbitrage bet or arb) is when you can bet on every possible outcome of an event across different bookmakers and lock in a profit no matter the result, by taking advantage of gaps in the odds.
How is a surebet different from arbitrage?
They’re the same thing. Surebet is the term you’ll hear more in European markets, while arbitrage betting is the more technical, American label. Both mean backing every outcome across different bookmakers for a guaranteed profit.
What kind of ROI can I expect from surebets?
Most surebet chances land around 1-5% ROI. Bigger margins are rare and usually vanish fast. Even small percentages can pay off with larger investments and plenty of volume.
Can bookmakers ban me for surebetting?
Surebetting is legal, but bookmakers might limit or shut down accounts they suspect of it. Using multiple accounts, varying your stake sizes, and blending surebets with regular bets can help keep you under the radar.