Odds Format Converter
Convert seamlessly between Decimal, American, Fractional odds, and Implied Probability.
Quick Presets
Format Summary
Decimal 2.50
American +150
Fractional 3/2
Implied Probability (%) 40.00%
Two-Way Market Calculator
Calculate true probability and bookmaker margin for a two-way market.
Total Market % 104.71%
Bookmaker Margin 4.71%
Side A True % 50.00%
Side B True % 50.00%
Implied probability converts the quoted odds; it does not estimate the actual chance of the outcome. For a two-way market, proportional margin removal assumes both outcomes cover the market.
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Partner links
1win Sportsbook: compare the quoted price and exact market rules
What to check first → Visit 1win 18+ · Terms on site
Stake Sportsbook: compare sports markets and settlement rules
What to check first → Visit Stake 18+ · Terms on siteCheck the exact market, settlement rules and availability in your country. Offers depend on your country and account; current terms are on the operator’s site. A model result does not establish a betting edge.