Matched Betting Calculator
Calculate back stakes, lay stakes, liability and outcome values for qualifying bets and bonus bets. Learn how matched betting works or use the Australian matched betting guide.
This matched betting calculator estimates back and lay stakes for qualifying bets and bonus-bet conversions. Recheck the market, odds and commission before placing either bet.
This free back and lay calculator is built for Australians who want to calculate a qualifying bet or bonus-bet conversion before staking. It shows the lay stake, liability and estimated result for each listed outcome.
Whether you're placing a qualifying bet to unlock a reward or using a free bet to secure profit, our back lay calculator works out the exact lay stake required to balance the entered outcomes. Price movement, limits, rejected bets and mismatched settlement rules remain practical risks.
The calculator handles decimal odds, common exchange commissions, and both stake returned and stake not returned (SNR) bet types. It’s a must-have tool if you’re doing any kind of back to lay betting, lay back arbitrage, or want to build a repeatable system for checking promotion calculations.
- Quick calculations for both qualifying bets and free bets
- Works with all decimal odds and Betfair commission rates
- Ideal for back/lay betting strategies and arbitrage
- 100% free — no sign-up, no subscriptions
- Mobile-friendly and fast
Whether you're betting on the Premier League, Aussie horse racing, or other popular events, our calculator helps ensure you always place smart, risk-managed bets. It’s trusted by people who want a smarter, more calculated approach to sports betting — without gambling in the traditional sense.
The back and lay calculator is the core tool behind every successful matched betting system. It allows you to remove emotion and guesswork from your bets and replace them with precise, mathematical outcomes that compound over time.