The free bet conversion calculator estimates how much of a bonus bet you can turn into guaranteed cash by pairing the free bet with a hedge on the other side. To use it, choose the odds format, enter the free bet amount, add the free bet line, and then enter the hedge line from another sportsbook to calculate the hedge stake and expected profit. For example, if you have a $100 free bet at +300 and can hedge the opposite side at -350, the calculator will show the hedge amount to place and the profit you can lock in from the promotion. It is the easiest way to maximize free-bet value without manually working through the hedge math.