Parlay calculator
Add each leg to see a parlay's combined odds, total payout, and the win probability every leg has to clear together. More legs means a bigger payout and a smaller chance.
Legs (American odds)
Result
Total payout
$364.46
Profit
$264.46
Combined American
+264
Combined decimal
3.6446
Win probability
27.44%
Why parlays pay more and win less
A parlay multiplies the legs together, so the odds grow fast, but so does the chance that one leg misses. Because each leg already carries the book's margin, stacking legs stacks the margin too, which is why parlays are the house's favorite bet. The combined win probability here is the honest read on how often the whole slip actually cashes.