Moneyline Odds

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Convert American odds to implied probability and various international formats.

Odds Entry

American Odds

Fav (-)Dog (+)

Conversion Logic

Fav Formula|O| / (|O| + 100)

Dog Formula100 / (O + 100)

Betting Analysis

Implied Win Probability60.000%Chance of winning implied by the odds

Decimal Odds1.67Global Standard

Fractional2/3British Format

Winnings Visualization

Bet $150 to win $100

Profit on $100 bet: $$66.67

Format Synchronization Active

About this calculator

Overview

Moneyline odds (American odds) indicate how much you need to stake to win $100 (if negative) or how much you win on a $100 stake (if positive). Our calculator strips away the betting jargon to show the true mathematical probability implied by the bookmaker.

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Pro Tips

Favorites are marked with a minus (-); underdogs are marked with a plus (+).
Decimal odds are the most common format globally because they include the returned stake in the total multiplier.
Implied probability is key: if the odds imply a 60% chance but your analysis says 70%, you've found 'value'.

Fun Facts

"In a perfectly fair market, the probabilities of all outcomes add up to 100%. If they total 105%+, that extra 5% is the 'Vig'—the bookie's fee."
"The 'Juice' is effectively the price you pay for the bookmaker's service, and it varies between different sports and platforms."
"Successful bettors look for 'overlay'—situations where the true probability of an outcome is higher than the odds imply."