Parlay Calculator
Work out parlay payouts with American odds (USD).
Sports Betting Calculators
Calculate your sports betting payouts with our free betting calculators designed for the US market. Whether you're betting on NFL, NBA, MLB, NHL, or any major sport, our tools help you understand potential returns before placing your bets. All calculators use American odds (moneyline format) and display results in USD.
Same-Game Parlay Calculator
Calculate same-game parlay payouts with correlated legs.
Round Robin Calculator
Calculate round robin bet returns across all combinations.
Teaser Calculator
Calculate teaser bet payouts with manual pricing.
Moneyline Calculator
Calculate moneyline bet payouts and implied probability.
Point Spread Calculator
Calculate point spread bet payouts with line tracking.
Totals Calculator
Calculate over/under totals bet payouts.
Odds Converter
Convert between American, Decimal, and Fractional odds formats.
Hedge Calculator
Calculate hedge bet stakes to lock in profit or reduce risk.
Vig Calculator
Calculate the vig (juice) and find no-vig fair odds for any market.
Implied Probability Calculator
Convert between odds and implied probability in both directions.
Arbitrage Calculator
Find arbitrage opportunities across sportsbooks for 2-way and 3-way markets.
EV Calculator
Calculate expected value and find +EV bets based on your probability estimates.
Kelly Criterion Calculator
Calculate optimal bet sizing using Kelly Criterion for bankroll management.
Dutching Calculator
Distribute stakes across multiple selections for equal profit on any winner.
CLV Calculator
Measure Closing Line Value to track if you beat market efficiency.
Sports Betting Tax Calculator
Estimate federal and state taxes on your sports betting winnings.
Frequently Asked Questions
What are American odds?
American odds (also called moneyline odds) use positive and negative numbers to show potential payouts. Positive odds (like +150) show how much profit you'd make on a $100 bet. Negative odds (like -200) show how much you need to bet to win $100. All our calculators use American odds.
Are these calculators free to use?
Yes, all our betting calculators are completely free with no signup required. Use them as often as you need to calculate payouts, compare bets, or understand potential returns before placing your wagers.
Which calculator do I need for NFL or NBA betting?
For straight bets on NFL or NBA games, use the Moneyline, Point Spread, or Totals calculator depending on your bet type. For multiple games, use the Parlay Calculator. For same-game bets, try the Same Game Parlay Calculator. For adjusted spreads, use the Teaser Calculator.
Can I use these with any sportsbook?
Yes, our calculators work with odds from any US sportsbook including DraftKings, FanDuel, BetMGM, Caesars, PointsBet, and more. Just enter the American odds shown by your sportsbook to calculate potential payouts.
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