Last Updated: January 15, 2026

Sports Betting Odds Calculator

Learn to Make Smarter Bets — For Educational Purposes Only. Our free calculators help you understand odds conversion, probability, parlays, hedging, and more with 100+ free betting tools.

Filter Calculators

Showing 106 of 106 calculators

All Free Sports Betting Calculators

Explore the tools and concepts used by experienced bettors

Horse Racing Calculators

Exotic bet calculators for horse racing

Odds Payout Chart - Quick Reference

Use this odds payout chart to quickly see potential winnings on a $100 bet at common American odds:

American OddsDecimal OddsFractional OddsImplied Probability$100 Payout
-5001.201/583.3%$120
-2001.501/266.7%$150
-1501.672/360.0%$167
-1101.9110/1152.4%$191
+1002.001/150.0%$200
+1502.503/240.0%$250
+2003.002/133.3%$300
+3004.003/125.0%$400
+5006.005/116.7%$600
+100011.0010/19.1%$1,100

This odds payout chart shows conversions between American, Decimal, and Fractional odds formats. Use our odds converter sports betting tool for custom calculations.

Why Trust Our Calculators?

Our mission: Democratize access to tools that help bettors make better decisions.

10+ Year Industry Experience

Built by the makers of LineStar App, TrackWiz App, and Props Optimizer. Our team has been building professional-grade betting tools since 2014.

Mathematical Rigor

Every calculator uses peer-reviewed formulas: Kelly Criterion, Poisson distributions, Monte Carlo simulations, and Bayesian probability models used by professional bettors.

Data Accuracy & Integrity

We are committed to providing accurate, up-to-date calculations. Our formulas are regularly audited, and we continuously verify outputs against industry standards to ensure you get reliable results every time.

100% Free & Transparent

No hidden fees, no paywalls. We show our work—every formula is documented. We promote responsible gambling and never guarantee wins.

100+
Free Calculators
500K+
Monthly Users
2025
Est. Year
50+
Strategy Guides

Responsible Gambling

Gambling should be entertaining, not a way to make money. Only bet what you can afford to lose, and never chase your losses. Set limits on time and money spent gambling.

Signs of problem gambling:
  • Betting more than you can afford to lose
  • Chasing losses with bigger bets
  • Lying to others about gambling habits
  • Gambling interfering with work or relationships