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Parlay Calculator

Add each leg in American odds to see your parlay's combined odds, total payout, and — the number sportsbooks bury — the real chance it actually hits. Every leg you add multiplies the payout, but it multiplies the vig against you too.

total payout (stake + profit)
Combined odds
Decimal
Chance to hit
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Scout finds single-market edges worth your money — and shows you the ones actually worth parlaying.

How a parlay is priced

A parlay pays out only if every leg wins. To combine them, convert each leg to decimal odds and multiply them together — that product is your parlay's decimal odds. Your payout is simply stake × combined decimal.

The chance to hit shown here multiplies each leg's market-implied probability. It's why parlays are the house's favorite bet: each leg already carries the vig, so stacking them compounds the margin against you. A 4-leg parlay of coin-flip-ish lines can quietly bake in a double-digit hold.

Parlays aren't automatically bad — but they're only +EV if every leg is independently +EV, and correlated legs distort the true odds entirely. That's the discipline: price each leg honestly first. It's exactly what KalEdge's Scout does before anything gets called an edge.

© 2026 KalEdge · Intelligence, not a sportsbook — never places a bet. Not financial advice. · kaledge.tech