Distribution Calculator - Free Online | FunToolX
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Distribution Calculator
Compute probabilities and quantiles for normal and binomial distributions, with a density curve.
About this tool
Distribution Calculator is a free online tool. Compute probabilities and quantiles for normal and binomial distributions.
Select the type of probability distribution (normal distribution, binomial distribution, Poisson distribution, uniform distribution, exponential distribution, etc.), enter parameters (such as the mean and standard deviation of the normal distribution), and the tool calculates the probability density, cumulative probability (P(X≤x)), or quantile of the specified value.
Normal distribution: Enter μ and σ to calculate the Z score and corresponding probability. Binomial distribution: Enter n and p and calculate the probability of success exactly k times. Poisson distribution: Input λ and calculate the probability of an event occurring k times.
Tool draws probability density function (PDF) and cumulative distribution function (CDF) images, highlighting calculated areas with color. Suitable for statistical learning, quality control, risk assessment and other scenarios.
Probability distribution calculator supports normal distribution, binomial distribution, Poisson distribution, etc., and calculates probability density, cumulative probability, and quantiles.