Parlays pay big when all legs win. Here's the exact math, real examples, and the fastest way to check your payout.
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A parlay combines multiple bets into one wager. Every leg must win for you to get paid. The reward is higher odds and bigger payouts.
Convert each American odd to decimal. Multiply all decimal odds together. That's your true parlay multiplier.
Example: Three -110 legs
-110 → 1.91 decimal
1.91 × 1.91 × 1.91 = 6.97
$100 stake returns $697 profit + stake.
Books don't just add odds. They use this exact method.
Watch how the math works with real odds from today's games
Want more NFL edges? Read our NFL betting strategies.
See the calculation with actual NHL odds
Check our NHL betting strategies for sharper plays.
Real basketball odds demonstrate the parlay formula
Learn more with our NBA betting strategies.
Live baseball odds show the multiplier effect
See our full MLB betting guide.
Now try it yourself! Enter your own legs and see how the math works:
Keep it to 2–4 legs. More legs kill your win rate fast.
Always convert to decimal odds to see the true payout.
Remove vig first with our no-vig fair odds calculator to spot value.
Check expected value on each leg using our expected value calculator.
Use our free tool that handles any number of legs and any odds format.
Open Parlay Calculator→ Teaser Calculator – Compare teaser payouts
→ Round Robin Calculator – Cover more outcomes
→ Hedge Calculator – Lock in profit
→ Kelly Criterion Calculator – Size bets correctly