Betting calculators
Odds, arbitrage, Kelly criterion and hedging calculators.
- Odds Calculator & ConverterOdds calculator and converter for decimal, fractional and American odds. Type any price to see the others, the implied chance and what your bet pays.
- Parlay CalculatorParlay calculator for any number of legs: combined odds, payout and the real chance it lands. Free to use.
- Arbitrage (Surebet) CalculatorArbitrage calculator that tells you if two bookies' odds lock in a profit, and how to split the stake. Free to use, no sign-up.
- Lucky 15 CalculatorLucky 15 calculator for win and each way bets. Enter four prices and results, and see your return, profit and any one-winner bonus.
- Yankee CalculatorYankee calculator: four picks, 11 bets. Add prices and results to see what your Yankee returns, win or each way.
- Trixie CalculatorTrixie calculator for three selections and four bets. Enter odds and results to see your Trixie return, win or each way.
- Patent Bet CalculatorPatent bet calculator: three picks, seven bets with singles included. See your Patent return for any mix of winners, places and non-runners.
- Lucky 31 CalculatorLucky 31 calculator for five selections and 31 bets. Enter prices and results to see your return, each way and with bonuses.
- Each Way CalculatorEach way calculator: odds, place terms and result in, total return out. Shows place odds, Rule 4 and the price you need for a place to pay.
- Acca CalculatorAcca calculator (accumulator calculator) for fractional or decimal odds. Add your legs, mark wins, losers and voids, and add an acca boost.
- Matched Betting CalculatorMatched betting calculator for qualifying bets and free bets (stake not returned or returned). Gives the lay stake, liability and profit.
- Lay CalculatorLay calculator for exchange bets: lay stake, liability and profit after commission. Work it out from the stake or from what you can risk.
- Dutching CalculatorDutching calculator: split one stake across several selections so you win the same amount whichever of them wins. Fractional or decimal odds.
- Hedge CalculatorHedge calculator for locking in profit or getting your stake back. Works for accas going into the last leg, futures and any two-way bet.
- Kelly Criterion CalculatorKelly criterion calculator: how much of your bankroll to stake when you think the odds are wrong. Full, half and quarter Kelly.