The parlay calculator combines multiple legs into one overall price and shows the total payout and profit for your chosen stake. To use it, select the odds format, enter your stake, and add each leg with its odds so the calculator can multiply the prices together and generate the combined result. For example, if you place a $100 parlay with legs at +120 and -110, the calculator will show the combined parlay odds along with the total payout and profit if both legs win. It is a straightforward way to check parlay math before you place the ticket and see how each added leg changes the return.