Specialty Tools
Asian Handicap Calculator
Work out the return on an Asian handicap bet, including split quarter lines that halve your stake, from American odds, in dollars.
Bonus Bet Calculator
Work out what a sportsbook bonus bet is really worth - the profit if it wins and how much cash you can lock in - from American odds, in dollars.
Forecast (Exacta) Calculator
Work out the return on a forecast - picking first and second in the right order, the US exacta - from the two runners' odds, in dollars.
Lay Bet Calculator
Work out the liability and profit on a lay bet - betting on an outcome NOT to happen on an exchange - from American odds, in dollars.
Matched Betting Calculator
Turn a sportsbook free bet into locked cash by laying it off on an exchange - work out the lay stake, liability and guaranteed profit in dollars.
Over/Under (Totals) Calculator
Work out the payout and profit on an over/under totals bet from American odds, with push handling, in dollars.
Poisson Betting Calculator
Turn each team's expected goals into score and match-outcome probabilities using the Poisson distribution, to compare against the odds.
Teaser Calculator
Work out the payout on a teaser - a parlay where you move the spread or total in your favor across every leg at reduced odds, in dollars.
Tricast (Trifecta) Calculator
Work out the return on a tricast - picking first, second and third in the right order, the US trifecta - from three runners' odds, in dollars.
Tools for scenarios standard calculators can’t handle: matched betting, bonus conversion and Asian handicaps.
Matched betting
Pair a back bet at a bookmaker with a lay at an exchange to cover all outcomes and pull guaranteed cash from a promotion. Watch three numbers: the small qualifying loss, the free-bet conversion rate (usually 70-85%), and the net profit.
Asian handicaps
Asian lines remove the draw with goal handicaps. Quarter lines (-0.25, -0.75) split your stake across two adjacent lines, so you can half-win or half-lose; the calculator resolves exactly what each scoreline pays.
Frequently Asked Questions
What is matched betting?
Matched betting is a strategy that uses bookmaker free bets and promotions to generate guaranteed profit. It works by placing a qualifying bet with a bookmaker (to unlock a free bet) and then laying the same outcome at a betting exchange to eliminate risk. When the free bet is awarded, you repeat the process — back with the free bet, lay at the exchange — to extract a guaranteed profit from the free bet value.
Is matched betting risk-free?
When done correctly, matched betting is mathematically risk-free because every bet is covered. However, there are practical risks: human error (placing the wrong bet), odds changing between placing back and lay bets, and bookmakers limiting or closing your account if they detect matched betting patterns. Following a systematic approach and double-checking every bet minimizes these risks.
What is a free bet (bonus bet) and how do I convert it to cash?
A free bet or bonus bet is a promotional offer from a bookmaker that lets you place a bet without risking your own money. If the free bet wins, you typically receive only the profit (not the stake). To convert it to cash, place the free bet on a high-odds selection and lay the same outcome at a betting exchange. Our calculator determines the optimal odds and lay stake to maximize your cash extraction, typically 70-80% of the free bet value.
What are Asian handicap bets?
Asian handicaps eliminate the draw outcome by applying a goal handicap to one team. A -0.5 handicap means the team must win outright. A -1.0 handicap means they must win by 2 or more goals. Quarter handicaps (e.g. -0.75) split your stake between two adjacent handicaps. Asian handicaps offer only two outcomes (win or lose), which typically results in better odds and lower bookmaker margins compared to traditional three-way markets.
What are quarter Asian handicaps?
Quarter handicaps (e.g. -0.25, -0.75, +1.25) split your bet equally between two whole or half handicaps. A -0.75 handicap splits your stake between -0.5 and -1.0. If the team wins by exactly 1 goal, you win the -0.5 portion and push (get your stake back) on the -1.0 portion, so you win half and draw half. This creates partial win/loss scenarios that are unique to Asian handicap betting.
How does a betting exchange work?
A betting exchange lets you bet against other bettors instead of against a bookmaker. You can either back (bet for an outcome to happen) or lay (bet against an outcome). The exchange takes a small commission on winnings (typically 2-5%). Exchanges are essential for matched betting because they allow you to lay bets. The most well-known exchanges are Betfair, Smarkets, and Betdaq.
What percentage of a free bet can I convert to cash?
Typically 70-85% of the free bet value can be converted to cash, depending on the odds available and the exchange commission rate. Higher odds on the back bet (free bet) result in a higher conversion rate but also require a larger lay liability at the exchange. Our calculator finds the optimal balance, showing you the exact lay stake needed and the guaranteed profit for any odds combination.