The Poisson Distribution Calculator is a powerful statistical tool that calculates the probability of a given number of events occurring within a fixed interval of time, space, or area. By simply entering the mean (λ) and the number of events (k), this calculator instantly provides the probability P(X = k) using the Poisson formula. It is especially useful for students, researchers, and data analysts when studying rare events such as system failures, incoming phone calls, or accidents. With its mobile-friendly and WordPress-safe design, this calculator ensures fast, accurate, and reliable results for anyone working with probability and statistics.