Free tool

Odds Converter

Convert between decimal, fractional, American, and implied probability formats instantly.

Core formula

Decimal = numerator / denominator + 1

Convert odds between formats

Input formatOdds value

Enter decimal odds, e.g. 2.50.

Output

Decimal2.5000

Fractional3/2

American+150

Implied probability40.00%

Use Notes

Australian bookmakers display decimal odds, but US-facing resources often use American or fractional formats.

Implied probability is useful for comparing your own model to the market price.