Lay Bet Calculator
Calculate lay stakes for betting exchanges like Betfair
Back Bet Details
Lay Bet Details
Betfair: 5%, Smarkets: 2%
Example Scenarios
Lay Bet Result
$9.64
$30.84
Amount held by exchange
Lay Stake Formula
How Lay Betting Works
Place Back Bet
Place a regular bet with a bookmaker at the best available odds.
Lay on Exchange
Bet against the same outcome on a betting exchange like Betfair.
Lock In Value
Your back and lay bets offset each other, extracting value from bonuses or odds differences.
Frequently Asked Questions
Free Lay Bet Calculator for Betfair & Exchanges
Our lay bet calculator helps you calculate the perfect lay stake for betting exchanges like Betfair and Smarkets. Enter your back bet details, exchange odds, and commission rate to see exactly how much to lay for matched betting or trading strategies.
The calculator shows your required lay stake, liability (risk amount held by the exchange), and profit/loss for each outcome. It's essential for matched betting, where you back at bookmakers and lay at exchanges to extract value from free bets.
Lay betting is a core skill for matched bettors. Use our free calculator to find the optimal lay stake, minimize qualifying losses, and maximize free bet extraction. Works with all betting exchanges and commission rates.