Matched Betting Calculator

Calculate the optimal lay stake for matched betting. Supports qualifying bets (minimize loss) and free bets — both SNR (stake not returned) and SR (stake returned). Shows lay stake, liability, and guaranteed profit for any outcome.

Complete User Guide

Choose mode: Qualifying Bet or Free Bet. Enter back stake (or free bet value), back odds (decimal), lay odds (decimal from exchange), and exchange commission %. Click Calculate to get the optimal lay stake, your liability, and the profit/loss for each outcome.

The Mathematical Formula
Lay Stake (qualifying) = Back Stake × Back Odds ÷ (Lay Odds − Commission); Lay Stake (free SNR) = Free Bet × (Back Odds − 1) ÷ (Lay Odds − Commission)

Qualifying: Lay = Back × BackOdds ÷ (LayOdds − Comm). Free bet SNR: Lay = FreeBet × (BackOdds−1) ÷ (LayOdds−Comm). Free bet SR: Lay = FreeBet × BackOdds ÷ (LayOdds−Comm). The lay stake equalizes outcomes so profit is identical regardless of match result.

Frequently Asked Questions

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