Skip to content

Odds and Probability Calculator

Chris Lollis
By: Chris Lollis | Last Updated: April 21, 2026

Convert betting odds between American, decimal, and fractional formats, then instantly see implied probability, projected profit, and total return.

American Odds
—
Decimal Odds
—
Fractional Odds
—
Implied Probability
—
Profit
—
Total Return
—

American odds must be +100 or greater, or -100 or lower. Decimal odds must be greater than 1. Fractional odds should be entered like 5/2 or 10/11.