How can I get the best price on a parlay bet? If, for example, the result of multiplying legs of a parlay bet is 6.97, for a stake of $100, you stand to win $597 ( 6.97 x $100 minus your initial $100 stake). Then, multiply those decimal odds together for the overall odds for that parlay. To do the math: convert the odds on your lines to decimal format (or simply use our odds converter). Parlay Calculator FAQ How do I calculate a parlay payout?Ĭalculating a parlay payout involves a bit of math, so the best and quickest way is to use our calculator above. Looking for Super Bowl 57 betting resources? We have you covered! The BetMGM app is available for mobile wagers in Washington DC, but only at Nationals Park. *In-person registration and betting only in MS.