Free Parlay Calculator
Calculate Potential Parlay Odds & Payouts Instantly
Combine multiple bets into one high-payout wager
Your Potential Parlay Results
Parlay Breakdown:
| Selection | Original Odds | Decimal Odds | Running Total |
|---|
Quick Instructions:
- Enter your bet amount (stake)
- Choose your odds format (American, Decimal, or Fractional)
- Input the odds for each selection in your parlay
- Add at least 2 selections, up to 15 maximum
- Click "Calculate Payout" to see your potential return if all selections win
💡 Ready to Place Your Parlay?
Now that you've calculated your potential payout, compare the best betting sites and sportsbooks to find the best odds and bonuses for your parlay bets. Different sportsbooks offer different odds - even small differences compound significantly in parlays.
What is a Parlay Calculator?
A parlay calculator is a free tool that calculates the potential payout of a parlay bet based on the odds of each individual selection. It multiplies all the odds together with your stake to show your total potential return, including your original bet amount. Parlays (also called accumulators or multi-bets) combine multiple selections into a single bet, where all selections must win for the bet to pay out.
Our free parlay calculator handles all odds formats - American (+150/-110), Decimal (2.50), and Fractional (3/2) - making it perfect for NFL parlays, NBA parlays, MLB parlays, and any other sports betting combinations. Whether you're calculating a simple 2-team parlay or a complex 15-leg accumulator, this tool provides instant, accurate results with real-time calculations as you type.
How Does the Parlay Calculator Work?
The parlay calculator uses a simple mathematical formula to determine your potential payout. Here's the step-by-step process:
Parlay Calculation Formula
Potential Total Payout = Stake × (Odds₁ × Odds₂ × Odds₃ × ... × Oddsₙ)
Where all odds are converted to decimal format first:
- American to Decimal: Positive odds: (odds/100) + 1 | Negative odds: (100/|odds|) + 1
- Fractional to Decimal: (numerator/denominator) + 1
- Decimal: Already in correct format
Real-World Parlay Examples
NFL Parlay Calculator Example
Let's calculate a typical NFL Sunday 3-team parlay:
| Selection | Bet Type | Odds | Decimal Odds |
|---|---|---|---|
| Kansas City Chiefs | Moneyline | -150 | 1.667 |
| Buffalo Bills +3.5 | Point Spread | -110 | 1.909 |
| Cowboys vs Eagles Over 48.5 | Total | -110 | 1.909 |
| $50 Stake - Potential Payout: | $50 × (1.667 × 1.909 × 1.909) = $303.89 | ||
NBA Parlay Bet Calculator Example
Here's a 4-team NBA parlay with mixed bet types:
| Selection | Bet Type | Odds | Potential Result if Win |
|---|---|---|---|
| Lakers -5.5 | Spread | -110 | $90.91 returns $190.91 |
| Celtics ML | Moneyline | +125 | $190.91 returns $429.55 |
| Warriors vs Suns O225.5 | Total | -105 | $429.55 returns $838.62 |
| Nuggets -3.5 | Spread | -115 | $838.62 returns $1,567.42 |
| Potential Total Return on $100: | $1,567.42 (Profit: $1,467.42) if all win | ||
Baseball (MLB) Parlay Calculator Example
MLB parlays often feature moneyline bets due to the absence of point spreads:
| Team | Moneyline Odds | $25 Parlay Leg Potential |
|---|---|---|
| Yankees | -140 | Potential win: $17.86 |
| Dodgers | +110 | Potential win: $27.50 |
| Astros | -125 | Potential win: $20.00 |
| Potential Total Payout: | $137.64 (Profit: $112.64) if all win | |
Parlay Payout Chart - Quick Reference
| Number of Teams | True Odds at -110 | $10 Bet Potential Win | $100 Bet Potential Win | Win Probability |
|---|---|---|---|---|
| 2 Team Parlay | 2.64 to 1 | $26.40 | $264.00 | 26.4% |
| 3 Team Parlay | 5.96 to 1 | $59.60 | $596.00 | 12.9% |
| 4 Team Parlay | 12.28 to 1 | $122.80 | $1,228.00 | 6.3% |
| 5 Team Parlay | 24.36 to 1 | $243.60 | $2,436.00 | 3.1% |
| 6 Team Parlay | 47.41 to 1 | $474.10 | $4,741.00 | 1.6% |
| 7 Team Parlay | 91.42 to 1 | $914.20 | $9,142.00 | 0.8% |
| 8 Team Parlay | 175.44 to 1 | $1,754.40 | $17,544.00 | 0.4% |
Common Parlay Betting Mistakes to Avoid
- Adding Too Many Legs: Each additional selection dramatically reduces your chances of winning. A 2-team parlay at -110 odds has a 26.4% chance of winning, while a 6-team parlay drops to just 1.6%.
- Ignoring Correlation: Avoid parlaying highly correlated events (like a team to win and the same game to go over the total) unless your sportsbook specifically allows same-game parlays.
- Chasing Big Payouts: The allure of massive potential payouts can lead to poor bankroll management. Stick to 2-4 team parlays for better long-term results.
- Not Shopping for Best Odds: Small differences in odds compound in parlays. Always compare odds across multiple sportsbooks to maximize your potential returns.
- Poor Bankroll Management: Never bet more than 1-2% of your bankroll on parlays due to their high-risk nature.
Advanced Parlay Calculator Tips
Hedge Large Parlays
If you have a 5-leg parlay with 4 wins, consider hedging the final leg to guarantee profit. Use our hedge calculator for optimal amounts.
Use Round Robins
Instead of one large parlay, create multiple smaller parlays from your selections for better win probability. Try our round robin calculator.
Focus on Value
Look for same-game parlays where correlated outcomes may provide better value than individual bets when used appropriately.
Track Your Results
Keep detailed records of your parlay bets to identify which types and sizes work best for your betting strategy.
Consider Insurance
Some sportsbooks offer promotions where you may get your stake back if only one leg loses. Check terms and conditions for details.
Use Teasers
In football and basketball, teasers allow you to adjust point spreads in your favor at reduced odds for potentially better value.
Maximize Your Parlay Value with Sportsbook Bonuses
Smart bettors take advantage of sportsbook promotions to reduce risk and increase potential returns. Many operators offer parlay insurance (where you may get your stake back if one leg loses) and enhanced parlay odds for new customers. Compare current betting bonuses and promotions to find the best deals for your parlay strategy.
Frequently Asked Questions
What is a parlay calculator?
A parlay calculator is a free tool that calculates the potential payout of a parlay bet based on the odds of each individual selection. It multiplies all the odds together with your stake to show your total potential return, including your original bet amount, if all selections win.
How do you calculate parlay odds?
To calculate parlay odds, convert all odds to decimal format, multiply them together, then multiply by your stake. For example: a $10 parlay with odds of +150 (2.50) and -110 (1.91) = 2.50 × 1.91 × $10 = $47.75 total potential payout if both selections win.
What does a 4 team parlay pay?
A 4 team parlay typically pays around 12.28-to-1 odds if all legs are -110. This means a $10 bet would potentially return $132.80 ($122.80 profit plus your $10 stake) if all four selections win. The exact payout depends on the individual odds of each selection.
Can I calculate parlays with decimal odds?
Yes, our parlay calculator works with American (+150/-110), Decimal (2.50), and Fractional (3/2) odds formats. Simply select your preferred format and enter your odds - the calculator will automatically convert and calculate your potential payout.
Can I use this parlay calculator for NFL bets?
Yes, our free parlay calculator works perfectly for NFL parlays. Simply enter the odds for each NFL game selection (spreads, totals, or moneylines), add your stake amount, and instantly see your potential payout if all selections win for the entire parlay.
What's the maximum parlay size I can calculate?
Our free parlay calculator supports up to 15 legs, though most sportsbooks limit parlays to 10-12 selections. Remember that each additional leg significantly reduces your probability of winning if all selections must win for the parlay to pay out - a 10-team parlay at -110 odds has just a 0.1% chance of hitting.
Is this parlay calculator accurate?
Yes, our parlay calculator uses the exact mathematical formulas used by sportsbooks to calculate potential payouts. It's been tested against major sportsbooks and provides 100% accurate results for all odds formats and parlay sizes when calculating what you would receive if all selections win.
Is this parlay calculator really free?
Yes, our parlay calculator is 100% free to use with no signup required. You can calculate unlimited parlays, save your calculations, and access the tool from any device. Once you've calculated your potential parlay payout, check out our guide to the best sports betting apps to place your bets. We provide this free service to help sports bettors make informed decisions.
Published by: Robert Wood, Topend Sports, July 2025
Last Updated:
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- Teaser Calculator - Calculate adjusted spread parlays
- View all 30 Free Betting Calculators
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