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Poisson Distribution Calculator

Solve Poisson distribution problems from the expected rate. Compute probability of k events in an interval and see useful summary measures.

Enter the Details

Enter the average rate of success and the number of occurrences in the calculator below to
find the probabilities of an event occurring using the Poisson distribution.




Result will appear here...


Last updated: February 17, 2026

Created by: Eon Tools Dev Team

Reviewed by: Ankit Khatiwada





Ankit Khatiwada

Ankit Khatiwada is a researcher and graduate student in Computer Science at Saarland University, with strengths in statistics, data analysis, data engineering, and full stack development. His work sits at the intersection of quantitative reasoning and applied technology, making him a strong fit for tools that depend on clear numerical logic. At Eon Tools, he reviews number and statistical tools.