#1 Free Probability Calculator 2025

How to Use:

1. Select the type of probability calculation you want to perform from the dropdown menu.
2. Enter the required values in the input fields that appear. For probabilities (P), enter values between 0 and 1. For counts, enter non-negative numbers.
3. Click the "Calculate Probability" button.
4. The calculated probability will be displayed below.
5. Click "Show Details" to view the formula, theory, and step-by-step calculation for the chosen scenario.
6. Use "Clear All" to reset the calculator.