OddsEdgeParlay calculator
Combine up to 12 selections to see the parlay odds, potential return and the chance it wins, plus how the bookmaker's margin stacks up across legs.
Result
Enter at least two selections.
Parlay odds
Total return
Profit
Chance the odds imply%
True chance%
Fair parlay odds
Edge%
How parlay odds work
A parlay (accumulator) wins only if every selection wins, so the odds multiply: 1.80 × 2.10 × 1.65 = 6.24. A 10 stake returns 62.37.
Why the margin stacks up
The bookmaker's margin multiplies too. Three selections that each carry a 5% margin add up to about a 16% margin on the parlay (1.05 × 1.05 × 1.05 ≈ 1.16), so on average you give up around 14% of your stake instead of about 5% on a single. That's why parlays look tempting but usually cost more in the long run. Add fair odds for each leg above to see the real edge. It's also why OddsEdge publishes singles: see Singles vs accumulators.