Implied Probability Calculator
Convert decimal odds into implied probability, reverse probability into fair odds, and estimate bookmaker margin from a 1X2 market.
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Implied probability from odds
Use this page to turn bookmaker odds into implied probability, estimate fair odds from your own probability, and check the built-in margin on a 1X2 market. This is one of the fastest ways to sanity-check value bets and compare prices across books.
Odds → Implied Probability
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47.62%
Probability → Fair Odds
%
2.22
Bookmaker Margin (1X2 market)
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4.81%
104.81%
How to use this
- Convert bookmaker odds into a quick win-probability estimate.
- Compare your own model probability against the market.
- Check how much margin the bookmaker has baked into a 1X2 market.
- Use fair odds to spot where a price may offer positive expected value.