Implied % = 100 / decimal odds (single-outcome model).
Decimal odds (e.g. 2.50)—naïve implied win % without bookmaker margin.
Implied % = 100 / decimal odds (single-outcome model).
With European-style decimal odds > 1, the page shows implied win probability ≈ 100 ÷ odds as a percent. The second line prints a textual 1 / odds fraction for the same ratio. Vig/joint probabilities across outcomes are not modeled.
This calculator uses plain decimal numbers. If a result looks wrong, check whether you used a comma instead of a dot (or vice versa) where the field expects one.
Educational estimate only.