Parlay calculator.
Add your legs in American or decimal odds — combined price, payout and profit update as you type.
Each leg must win for a parlay to pay. The combined implied probability drops fast — that's why books push them.
FAQ
How is a parlay payout calculated?
Convert every leg to decimal odds and multiply them together, then multiply by your stake. Two legs at -110 (1.909 each) combine to 3.645 — a $100 stake returns $364.50.
Why do sportsbooks love parlays?
The book's margin compounds with every leg. A single -110 bet carries ~4.5% margin; a 4-leg parlay of -110s carries ~17%. Fun, but expensive as a strategy.
Do all legs have to win?
Yes. One losing leg loses the whole ticket. A void/push leg usually just drops out and the parlay recalculates without it.
This tool is maintained by USA Sports Bets Edge — a public betting tracker running since March 2021. Every pick is graded on a public record, wins and losses. See the live record or browse the weekly recaps.