How to use this tool
Check the units, enter your values, and run the tool. Results follow the assumptions and method below.
Calculation method
Probability of exactly k events
exp(-rate)*rate^k/factorial(k)Poisson Distribution Calculator
k is a nonnegative integer; assumes independent constant-rate events.
k is a nonnegative integer; assumes independent constant-rate events.
Result
Enter your values and run the tool to see your result.