Convert decimal, fractional and American odds, or enter implied probability as a percentage.
Enter values and select Calculate.
Understanding the result
Decimal odds of 2.50 equal 3/2, +150 and 40% implied probability. A winning 10-unit stake returns 25 in total: 15 profit plus the original 10. Probability is calculated as 100 ÷ decimal odds; it is not a prediction.
Results are rounded to four decimal places. Fractions are approximated with denominators up to 1,000,000,000. The bookmaker margin is not removed: market probabilities may total more than 100%. American odds between −100 and +100 are invalid.