Single Bet Calculator
Pick one odds format, enter once, and see every other format convert instantly.
Odds & Amount
How to Use the Single Bet Calculator
Our single bet calculator makes it easy to calculate your potential winnings and payout instantly. Whether you're betting on moneyline, spread, or totals, follow these simple steps:
- Enter your bet amount — Type the amount you plan to wager in dollars
- Choose an odds format — Select from American, Decimal, Fractional, or Implied Probability
- Enter the odds — Input your odds in your chosen format
- View results instantly — See your potential winnings, total payout, and winning probability automatically
The calculator automatically converts your odds to all other formats, so you can see the full picture no matter which format your sportsbook uses.
Understanding Betting Odds Formats
Different sportsbooks and betting markets use different odds formats. Here's what each one means:
American Odds (Moneyline)
Shows how much you need to bet to win $100 (negative odds) or how much $100 wins (positive odds). Example: -150 means bet $150 to win $100; +150 means $100 wins $150.
Decimal Odds
Your total return for every $1 wagered, including your original stake. Example: 2.50 means a $100 bet returns $250 total ($150 profit).
Fractional Odds
Common in UK and European betting. Shows profit relative to stake. Example: 5/2 means a $2 bet wins $5 profit, returning $7 total.
Implied Probability
Expresses odds as a percentage likelihood of winning. Example: 52% implies you'll win about half of comparable 52% probability bets over time.
Frequently Asked Questions
What's the difference between payout and winnings?
Winnings = profit only (original bet removed). Payout = total return including your original bet. If you bet $100 at 2.0 decimal odds: winnings = $100, payout = $200.
What does +150 mean in American odds?
+150 means if you bet $100, you win $150 profit (total payout $250). Positive American odds show how much profit $100 will make. The higher the number, the more likely the bookmaker thinks you'll lose.
How do I convert American odds to decimal?
For positive odds: (American ÷ 100) + 1. For negative odds: (100 ÷ |American|) + 1. Or just use this calculator—it converts instantly across all formats.
What is implied probability?
Implied probability converts odds into the percentage chance the bookmaker thinks you have to win. A -110 American odds implies ~52.38% probability. It's what you should win if you bet the same odds 100 times.