Odds Assist Pro

Compare lines & odds for upcoming games and see +EV, arbitrage, and middle opportunities currently available.

Compare Odds & Lines

Compare sports betting odds & lines at major sportsbooks for most leagues. Updates every minute.

Best Online Sportsbooks

Looking for a sports betting sites? Compare the best online sportsbooks & sign-up bonuses to find your fit.

+EV Bets Tool

See positive expected value bets that are currently available at sportsbooks. Updates every minute.

Best Sportsbooks of 2024

#1 Sportsbook


Bonus: Bet $5, Get $150 Bonus If Your Bet Wins

Caesars Sportsbook Logo

#2 Sportsbook


Bonus: $1,000 First Bet on Caesars

#3 Sportsbook


Bonus: Second Chance Bet Up to $1,500*

#4 Sportsbook


Bonus: Bet $5, Get $150 in Bonus Bets

#5 Sportsbook


Bonus: Second Chance Bet Up to $500

Must be 21+ in most states. Gambling problem? Call 1-800-GAMBLER. See full disclaimer.
*Bonus Bets Expire in 7 Days. One New Customer Offer Only. Add’l terms.

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Sports Betting Calculators

Betting Odds Calculator

Calculate the payout on your bet, convert between odds formats, & see the implied probability

Parlay Calculator

Calculate the payout on your parlay based on the odds of each leg. Works with all odds formats

Hedge Calculator

See the hedge amount that guarantees you the most profit based on your original bet & the hedge odds

Odds to Probability Calculator

See the implied probability of your bet winning based on the odds in any format.

Free Bet Calculator

Learn how to hedge a free bet to guarantee yourself the most profit & see how much you would win.

Odds Converter

Convert between the three betting odds formats (American, Decimal, & Fractional)

Sports Betting Legality by State

Check if sports betting is legal in your state & navigate to our state-specific sports betting guides


Sportsbook Reviews


We created Odds Assist to help bettors make better decisions when it comes to wagering on sports. We collect hundreds of data points on sportsbooks so you can be sure you are wagering your money with the best options available. We have in-depth sportsbook reviews, detailed state betting guides, free tools and calculators, and much more to help you along your sports betting journey. Learn more about us here.