Parlay calculator
Combine any number of legs in decimal, American or fractional odds, and see how the bookmaker's margin compounds with every leg.
Parlay calculator
Decimal (2.10), American (+150 or -110) or fractional (5/2).
Combined odds
6.97
Return if every leg wins
£69.68
Implied chance
14.4%
With a 4.5% margin on each leg, this 3-leg parlay pays about 87.6% of what fair odds would pay. The more legs, the more the margin compounds.