Work out parlay odds instantly with clear inputs, formula shown and shareable results.
Parlay odds multiply, so the combined price is the product of the individual decimal odds and the implied chance is one over that product. Because each leg also multiplies the bookmaker's margin, a three leg parlay carries roughly three times the built-in edge against you of a single bet.
Combined odds
combined = odds 1 x odds 2 x odds 3
Implied chance
implied % = 1 / combined odds x 100
combined = odds 1 x odds 2 x odds 3. Parlay odds multiply, so the combined price is the product of the individual decimal odds and the implied chance is one over that product.
Because each leg also multiplies the bookmaker's margin, a three leg parlay carries roughly three times the built-in edge against you of a single bet.
Enter leg 1 decimal odds, leg 2 decimal odds, leg 3 decimal odds, stake. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.