Free Sports Betting Calculator 2026
Parlay calculator, odds converter, arbitrage tool, hedge calculator – all in one place. Make smarter bets with accurate math. Used by 40,000+ bettors.
📊 Parlay Calculator
Parlay Results
📘 How to Use the Parlay Calculator
Enter Bet Amount
Input the amount you wish to wager.
Enter Odds for Each Leg
Select odds format and enter the odds for each selection (up to 8 legs).
Calculate Payout
Click 'Calculate Parlay' to see total payout and profit.
🔍 Understanding the Results
Total Odds
The combined decimal odds of all legs. Multiply by bet amount to get payout.
Payout
Total amount returned if all legs win (including stake).
Profit
Payout minus bet amount – your net winnings.
Implied Probability
The bookmaker's implied chance that all legs win. Lower = less likely.
📊 Common Bet Types & Payouts
| Bet Type | Example Odds | Payout on $10 |
|---|---|---|
| Moneyline (favorite) | -150 | $16.67 |
| Moneyline (underdog) | +200 | $30.00 |
| 2‑leg parlay | -110, -110 | $26.45 |
| 3‑leg parlay | -110, -110, -110 | $59.57 |
| Teaser (6 points) | -110, -110 | ~$20.00 |
📍 Sports Betting Tools by State
State‑specific calculators with local tax adjustments and legal sportsbooks.
Florida
Offshore only
FL Sports →Texas
Offshore only
TX Sports →California
Offshore only
CA Sports →New York
Legal retail & online
NY Sports →New Jersey
Legal, many books
NJ Sports →🎰 Sports Betting Tools by Sportsbook
Optimize for specific sportsbook odds formats and limits.
Bitstarz
Crypto sportsbook
Bitstarz →Bovada
American odds
Bovada →BetOnline
Decimal & American
BetOnline →Jackbit
Crypto sportsbook
Jackbit →⚙️ Advanced Features
📌 Real-World Examples
Example 1: 2‑Leg Parlay
$10 on two -110 legs → total odds +264, payout $36.45, profit $26.45.
Example 2: Arbitrage
Team A +150 at Book A, Team B +130 at Book B → arb opportunity ~2% profit.
❓ Frequently Asked Questions
How do I convert American odds to Decimal?
Positive: (odds/100)+1. Negative: (100/|odds|)+1. Our calculator does it automatically.
What is a parlay?
A parlay combines multiple bets into one; all must win to get paid. Payouts are higher due to compounded odds.
How is parlay payout calculated?
Convert each leg to decimal, multiply them, then multiply by bet amount. Payout = bet × (product of decimals).
What is implied probability?
The probability implied by the odds, assuming no vig. For decimal odds, IP = 1 / decimal.
Can I calculate round robins?
Yes, use our Round Robin Calculator.
Are these calculators accurate?
Yes, they use standard formulas and have been tested on thousands of bets.
What is arbitrage betting?
Placing bets on all outcomes across different sportsbooks to guarantee profit regardless of result.
🔧 Related Tools
🧮 How We Calculate
Parlay payout: Bet amount × (Decimal1 × Decimal2 × ... × DecimalN)
American to Decimal: Positive: (odds/100)+1; Negative: (100/|odds|)+1
Implied probability: 1 / Decimal (for each leg) or 1 / TotalDecimal for the parlay.
All calculations assume no correlation between legs.
📋 Changelog
Mar 24, 2026 – Fixed accessibility: added aria-labels to all form elements.
Mar 22, 2026 – Added state & sportsbook filters; improved mobile layout.
Mar 2, 2026 – Added up to 8 legs; improved decimal conversion.
Mar 1, 2026 – Initial release of Sports Betting Tools.
👨💻 Developed by Kevin Lee
Kevin Lee
Sportsbook Analyst · 6 yrs
Kevin has built odds engines for major sportsbooks. His calculators are trusted by thousands of bettors to find value and manage risk.
Full Bio →Ready to Bet Smarter?
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