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

Hedge Bet
0.00
Profit
0.00
% Profit
0.00%

How Does the Bonus Bet Calculator Work?

The Oddsy 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 “lock in” a risk-free profit 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

  1. Enter your free bet value, the back odds (at the bookmaker), and the lay odds (at the exchange).
  2. Include the exchange’s commission if there is one (e.g., 2%).
  3. Switch odds format (decimal, American, fractional) as you prefer.
  4. See the optimal lay stake, guaranteed profit, and your profit margin!
Why use the Oddsy Bonus Bet Calculator?
Instantly find the best way to extract value from every free bet. No more manual math or spreadsheets—just enter your odds and go!
Tip: For the biggest profit, always search for the closest matching lay and back odds!