Poisson Distribution
Calculate Poisson Distribution instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Poisson Distribution
λ
k
P(X=k)
0.224042
More about: Poisson Distribution
What it calculates
The “Poisson Distribution” calculator computes P(X=k) from 2 parameters: λ, k.
A core calculation for studying, engineering tasks, and checking solutions.
Example calculation
With parameters λ = 3, k = 2 the result is 0.224.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.