Statistical Calculators and Tables

StatCalculators.com offers free statistical calculators and tables for z-scores, t-tests, chi-square, standard deviation, and related tools. Use the links below to look up critical values or compute test statistics from your own data.

Browse the statistics calculators hub for every live tool and table. For a dedicated standard normal table, see z-table.com. For a dedicated t-table, see ttable.org.

Welcome to StatCalculators.com where you can find various statistical calculators and tables to help you with calculations. You can find the statistical calculators grouped by relevant category below. Whether you are a student or a researcher hopefully these calculators will save you some time. If you encounter any glitches or have suggestion please drop me a line. May the calculations begin!

Statistical Calculators

T Distribution

<strong>Student t-Value Calculator</strong> <strong>Effect Size (Cohen's d) for a Student t-Test Calculator</strong> <strong>p-Value Calculator for a Student t-Test</strong> <strong>T-Statistic and Degrees of Freedom Calculator</strong> <strong>T-Test Calculator (One-Sample, Two-Sample & Paired)</strong> <strong>P-Value Calculator (z, t, Chi-Square or F)</strong>

Normal Distribution

<strong>Z-Score Calculator</strong> <strong>Two-Tailed Area Under the Standard Normal Distribution Calculator</strong> <strong>Standard Deviation Calculator</strong>

Descriptive Statistics

<strong>Mean, Median, Mode, Range Calculator</strong> <strong>Rounding Calculator</strong>

F Distribution

<strong>Critical F-Value Calculator</strong> <strong>One-Way ANOVA Calculator</strong>

Poisson Distribution

<strong>Cumulative Distribution Function (CDF) Calculator for the Poisson Distribution</strong>

Binomial Probability

<strong>Binomial Probability Calculator</strong>

Chi-Square

<strong>Critical Chi-Square Value Calculator</strong>

Confidence Interval

<strong>Confidence Interval Calculator (Mean or Proportion)</strong> <strong>Sample Size Calculator</strong>

Non Parametric Test Calculators

<strong>Mann Whitney U-test Calculator</strong>

Covariance

<strong>Covariance Calculator (from a Correlation Coefficient)</strong>

Regression

<strong>Linear Regression Calculator with Scatter Plot</strong>

Correlation

<strong>Correlation Coefficient (from a Covariance) Calculator</strong> <strong>Correlation Coefficient Calculator (Pearson & Spearman)</strong>

Standard Error

<strong>Standard Error Calculator</strong>

Confidence Interval

<strong>Confidence Interval Calculator for the Population Mean</strong>

Statistical Tables

<strong>F Distribution Tables</strong> <strong>Chi Square Table</strong> <strong>Student's T Distribution Table</strong> <strong>Z Score Table</strong>    

Frequently asked questions

What can I do on StatCalculators.com?

You can use free calculators and distribution tables for common statistics tasks such as z-scores, t-tests, chi-square, and measures of spread.

Do I need an account?

No. The calculators and tables are free to use in your browser without signing up.

Are the tables the same as printed z or t tables?

Yes. The z, t, chi-square, and F table pages give the same kinds of critical values and probabilities you would look up in a textbook table.

Where should I start for a hypothesis test?

Pick the table or calculator that matches your statistic—z, t, chi-square, or F—or use the statistics calculators hub to browse by topic.