Probability Formula:
From: | To: |
The probability calculation converts decimal odds into the implied probability of an event occurring. This is useful in statistics, gambling analysis, and risk assessment.
The calculator uses the probability formula:
Where:
Explanation: The formula converts the decimal odds format to the implied probability that the event will occur.
Details: Understanding the implied probability helps in evaluating whether a bet or investment has positive expected value and in making informed decisions based on odds.
Tips: Enter the decimal odds (must be ≥0). The calculator will return the implied probability as a decimal between 0 and 1.
Q1: What's the difference between probability and odds?
A: Probability represents the chance of an event occurring (0 to 1), while odds represent the ratio of success to failure.
Q2: What does a probability of 0.5 mean?
A: A probability of 0.5 means there's a 50% chance the event will occur (equivalent to 1:1 or 2.0 in decimal odds).
Q3: How do I convert probability back to odds?
A: Odds = (1/Probability) - 1
Q4: What if my odds are in fractional format?
A: Convert fractional odds to decimal first (e.g., 5/1 = 6.0 in decimal) before using this calculator.
Q5: What's considered a "good" probability value?
A: In betting, probabilities below the bookmaker's implied probability may represent value, depending on your assessment of the true probability.