StatCalc.net - Statistics Calculators

StatCalc.net: Free Statistics Calculators With Step-by-Step Solutions

Find the right statistics calculator for your problem using our free collection of online statistics calculators. Calculate p-values, critical values, sample sizes, probabilities, z-scores, descriptive statistics, and more, with formulas and clear step-by-step solutions.

StatCalc.net offers a collection of 87 free online statistics calculators organized into 8 categories. Each statistics calculator gives you a clear answer and a step-by-step solution so you can understand how the result is obtained.

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Calculator Topics

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Basic Statistics Charts Confidence Intervals Hypothesis Test Normal Distribution Probability Probability Distribution Sample Size

Jump to a topic section below, then open the exact calculator you need.

All-in-One Calculator

Looking for an All-in-One Statistics Calculator?

Use our statistics calculator to calculate mean, median, mode, sum, variance, standard deviation, range, and other common statistics from your data. You can also calculate fractions, square roots, powers, logarithms, factorials, combinations, permutations, and complete statistical expressions in the same tool.

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Which Statistics Calculator Should I Use?

Choose a calculator category based on the type of statistics problem you need to solve.

33 calculators Basic Statistics Explore our basic statistics calculators for finding averages, measures of spread, data positions, standard errors, covariance, and other foundational statistics. Choose the tool that...
3 calculators Charts Explore calculators and tools in this topic with clear results and step-by-step solutions.
3 calculators Confidence Intervals Explore calculators and tools in this topic with clear results and step-by-step solutions.
21 calculators Hypothesis Test Explore our hypothesis test calculators for testing population means, proportions, variances, correlations, and relationships between categorical variables. Choose from z tests, t tests, ANOVA,...
8 calculators Normal Distribution Explore our normal distribution calculators to find probabilities, z scores, percentiles, and values associated with a normal distribution. You can also apply the empirical...
6 calculators Probability Explore calculators and tools in this topic with clear results and step-by-step solutions.
9 calculators Probability Distribution Use our probability distribution calculators to calculate probabilities and summary measures for common discrete and continuous distributions. Choose the appropriate calculator based on your...
4 calculators Sample Size Use our sample size calculators to estimate the number of participants or observations needed for your study. Choose Cochran’s formula, Slovin’s formula, or Yamane’s...
5 tables Statistical Tables Explore our free interactive statistical tables for finding probabilities and critical values used in common statistical tests and distributions. Choose from the z table,...

All Calculators

Browse every calculator on StatCalc.net, grouped by topic so you can find the right tool faster.

32 calculators

Basic Statistics

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5 Number Summary Calculator Arithmetic Mean Calculator Average Calculator Coefficient of Determination Calculator Coefficient of Variation Calculator Covariance Calculator Descriptive Statistics Calculator Geometric Mean Calculator Grouped Data Mean Calculator Harmonic Mean Calculator Interquartile Range Calculator Kurtosis Calculator Lower and Upper Fence Calculator Mean Absolute Deviation Calculator Mean Calculator Mean, Median, Mode Calculator Median Absolute Deviation Calculator Median Calculator Midrange Calculator Mode Calculator Modulo Calculator Pooled Standard Deviation Calculator Pooled Variance Calculator Quartile Calculator Range Calculator Skewness Calculator Standard Deviation Calculator Standard Error Calculator Standard Error of Proportion Calculator Sum of Squares Calculator Variance Calculator Weighted Mean Calculator
21 calculators

Hypothesis Test

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ANOVA Calculator Chi Square Goodness of Fit Calculator Chi-square (χ²) Critical Value Calculator Chi-Square Test Calculator Correlation Coefficient Calculator Correlation r Critical Value Calculator Degrees of Freedom Calculator F Test Calculator F-Critical Value Calculator Fisher’s Exact Test Calculator One Proportion Z Test Calculator One-Sample T-test Calculator One-Sample Z-Test Calculator P Value Calculator Paired T Test Calculator T Critical Value Calculator Two Proportion Z Test Calculator Two Sample T Test Calculator Two Sample Z Test Calculator Welch’s T Test Calculator Z Critical Value Calculator

Frequently Asked Questions

Learn more about StatCalc.net and how our online statistics calculators help you calculate, understand, and explain statistical results.

What is StatCalc.net?

StatCalc.net offers a collection of 87 free online statistics calculators for z-scores, p-values, probabilities, critical values, sample sizes, descriptive statistics, hypothesis tests, and more.

Can I use StatCalc.net for homework or assignments?

Yes. StatCalc.net can help you check statistics homework, verify calculations, and understand how answers are obtained. Many calculators show step-by-step solutions, making them useful for learning the manual method behind each result.

Are the statistics calculators free to use?

Yes. The statistics calculators on StatCalc.net are free to use. You can enter your values, calculate results, and view the available step-by-step solutions without paying.

Do the calculators show step-by-step solutions?

Yes. StatCalc.net calculators are designed to provide clear step-by-step solutions. Each tool shows the calculation method and, where appropriate, identifies the values entered, applies the formula, substitutes your values, solves the problem, and gives a short interpretation of the result.

Can I copy the step-by-step explanation?

Yes. Many calculators include an option to copy the step-by-step explanation. This makes it easier to review your work, save the solution, or use the steps as a guide when learning how to solve the problem manually.

Who can use StatCalc.net?

StatCalc.net is useful for students, researchers, teachers, and data users. Students can use it to check homework and learn formulas, while researchers and data users can use it to verify common statistical results.