Bonus Bet Calculator
Quick Facts
- Hedges free bets using exchange prices.
- Inputs: bonus value, back odds, lay odds, commission.
- Outputs: lay stake, profit, and % profit.
How to use
Steps
Enter the free-bet amount and both prices. Add exchange commission to see the exact hedge and expected profit.
Formula & definitions
Formula: Lay = Bonus × (Back − 1) / (Lay − Commission)
- Back Odds
- Price at the bookmaker.
- Lay Odds
- Opposing price at an exchange.
Bonus Bet Hedge Calculator
How Does the Bonus Bet Calculator Work?
The OddsX Bonus Bet Calculator shows you exactly how to turn bookmaker free bets into real withdrawable cash by hedging at a betting exchange. Maximize value, minimize risk, and make the most of every promotion—no guesswork needed.
What Is a Bonus Bet?
A bonus bet (or free bet) is a popular sportsbook promotion where you receive a stake to bet with, but only keep the winnings (not the stake itself). Our calculator helps you estimate a hedge by laying against your bonus bet outcome at a betting exchange.
- Perfect for matched betting & bonus hunting
- No risk if you hedge properly
- Works with all major odds formats
How to Use This Calculator
- Enter your free bet value, the back odds (at the bookmaker), and the lay odds (at the exchange).
- Include the exchange’s commission if there is one (e.g., 2%).
- Switch odds format (decimal, American, fractional) as you prefer.
- See the optimal lay stake, estimated return, and your profit margin.
Instantly find the best way to extract value from every free bet. No more manual math or spreadsheets—just enter your odds and go!
Updated 03 Apr 2026 SAST
Why it matters
Use the Bonus Bet Calculator to sanity-check prices, remove guesswork, and make faster decisions when odds move.
Example
Example: Free bet ZAR 200 at odds 5.0 with lay 5.2. The tool calculates back/lay stakes and conversion value.
Who it's for
Useful for converting sportsbook promotions into cash-equivalent value.
Use cases
- Estimate conversion value for sports betting site promos.
- Plan bonus bet hedges for online sports betting offers.
Practical tips
- Verify the odds are still live before relying on the output.
- Treat the results as guidance, not a guarantee.
- Compare multiple sportsbooks to validate value.
FAQs
Do I need exact commission?
Yes—accuracy improves stake precision.
Is this only for 2-way?
This version supports the common 2-way case.
Can I switch odds formats?
Yes—Decimal, American, Fractional.
Do sportsbooks allow bonus bet hedging?
Always check site terms before placing bets.