Free odds converter: turn American (moneyline) odds into decimal, fractional, and implied probability in one click. Fast, accurate, no signup.
American (moneyline) odds show profit on a $100 stake; decimal odds show total return per $1; fractional odds express profit as a ratio. Implied probability is the break-even win rate the price is charging you for.
For positive American odds, divide by 100 and add 1 (+150 → 2.50). For negative odds, divide 100 by the absolute value and add 1 (−150 → 1.667).
For + odds, divide by 100 and add 1 (+150 → 2.50). For − odds, divide 100 by the absolute value and add 1 (−150 → 1.667).
It is the break-even win rate for the price. If the real chance is higher than the implied probability, you have an edge.