Professional Parlay Calculator

Calculate multi-bet payouts and true probability instantly

Free professional parlay calculator trusted by 100,000+ bettors worldwide. Calculate multi-bet payouts, accumulator odds, and expected value for combination bets up to 12 legs. Learn parlay strategy from ESPN experts | Complete parlay math guide →

Total Payout

$0.00
Profit: $0.00 | Odds: +0
Enter your total parlay bet amount in dollars

Parlay Legs

Leg 1

Leg 2

Parlay Analysis

Complete Guide to Parlay Betting Strategy

🎯 What is a Parlay Bet?

A parlay bet (also known as an accumulator or combo bet) is a single wager that combines multiple individual bets into one larger bet. All selections must win for the parlay to be successful, but the potential payout is significantly higher than placing individual bets.

According to American Gaming Association research, parlay betting has grown 300% since sports betting legalization, making it one of the most popular betting formats among recreational bettors.

Example: 3-Leg NFL Parlay

  • Patriots -3.5 at -110 odds
  • Over 47.5 at -105 odds
  • Chiefs ML at -140 odds
  • Combined odds: +459 (5.59 decimal)
  • $100 bet wins $459 profit if all three hit

📊 Understanding Parlay Mathematics

The mathematics behind parlay betting is both simple and brutal. While individual bet probabilities multiply to create larger payouts, they also multiply to create exponentially lower win probabilities. Understanding this math is crucial for successful parlay betting.

Odds Calculation

Formula: Total Odds = Leg1 × Leg2 × Leg3...
Example: 1.91 × 1.95 × 1.71 = 6.37 total odds

Win Probability

Formula: Win% = (1/Odds1) × (1/Odds2) × (1/Odds3)...
Example: 52% × 51% × 58% = 15.4% chance to win

This mathematical reality explains why UNLV sports betting research shows that only 1 in 8 parlay bettors are profitable long-term. The key is finding +EV opportunities where your probability assessment exceeds the implied probability from odds.

❓ Comprehensive Parlay Betting FAQ

What happens if one leg of my parlay is voided or postponed?

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Is it better to bet parlays or individual bets?

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How do I calculate parlay odds manually?

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What sports are best for parlay betting?

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Should I use round robin betting instead of traditional parlays?

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How do sportsbooks make money on parlay bets?

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Parlay Calculator

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Calculate multi-bet payouts, probability, and expected value. Advanced analysis for combination betting with up to 12 legs.

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