Lay Bet Calculator
Calculate lay stakes and liability for betting exchanges. Perfect for matched betting and arbitrage.
What is a Lay Bet?
A lay bet is the opposite of a normal bet - you're betting against an outcome. Betting exchanges like Betfair allow you to act as the bookmaker. Lay betting is essential for matched betting, where you place a back bet at a sportsbook and a lay bet at an exchange to guarantee profit.
Bet Types Explained
- Normal: Standard qualifying bet where stake is returned if you win
- SNR (Stake Not Returned): Free bet where only winnings are paid, not the stake
- SR (Stake Returned): Free bet where both stake and winnings are paid
This calculator is for informational and educational purposes only. Results should be verified with your sportsbook before placing any wagers. All betting carries risk. Full Disclaimer
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Responsible Gambling
Gambling should be entertaining, not a way to make money. Only bet what you can afford to lose, and never chase your losses.
- Betting more than you can afford to lose
- Chasing losses with bigger bets
- Lying to others about gambling habits