Stats-Calculators provides free online statistics calculators for students, researchers, teachers, and data users. Calculate descriptive statistics, p-values, z-scores, probabilities, critical values, confidence intervals, sample sizes, correlations, regressions, hypothesis tests, and more, with formulas and clear step-by-step solutions.
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Stats-Calculators offers a collection of 113+ free online statistics calculators organized into 8 categories. Each tool gives you a clear answer and a step-by-step solution so you can understand how the result is obtained.
Browse every calculator, grouped by topic so you can find the right tool faster.
Enter your data set once and instantly compute the mean, median, mode, standard deviation, variance, range, IQR, z-scores, and more — all in one place. Includes step-by-step solutions, a histogram, and a box plot.
Everything you need to know about Stats-Calculators and how to use it.