Odds Converter — Decimal, Fractional, American

Type in any field — the others update instantly. Supports decimal, fractional, American (moneyline) odds and implied probability.

Decimal odds

Fractional odds

American (moneyline)

Implied probability (%)

Type any value to convert.

Quick reference

Decimal → probability: 1 / decimal × 100
Decimal → fractional: decimal − 1 as a reduced fraction
Decimal → American: if decimal ≥ 2 → (decimal − 1) × 100; else −100 / (decimal − 1)