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Odds Converter

Decimal, American, fractional: enter odds in one format, get all three — plus the implied probability.

Decimal

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American

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Fractional

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Implied probability

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How to read odds

Decimal odds are the easiest to compare: they show the total payout (stake included) per dollar wagered. Odds of 2.50 on a $10 bet return $25 if it wins. American and fractional formats encode the same information differently — useful depending on where the operator or content you're reading is from.

Why implied probability matters

Every price encodes a probability estimate (100 ÷ decimal odds). Comparing that probability to your own read on a matchup is the basis of the value bet calculator.

Odds converter · Parlay calculator · Value bet calculator · Wagering calculator · Availability by province · Glossary · Quiz
Guides: reading odds · building a parlay · live betting

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Frequently asked questions

What's the difference between decimal and American odds?

They're two ways of expressing the same thing. Decimal shows the total payout per dollar staked; American shows profit on a $100 stake (positive) or the stake needed to win $100 (negative).

Is implied probability the real probability?

No — it includes the bookmaker's margin (vig). The true probability is always a bit lower than what the odds suggest.

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