About Stats Workbench

Last updated 2026-10-13

Stats Workbench is a free set of statistics calculators for analysts, researchers, students and anyone who has to check a number before it goes into a report. Each page does one job — a standard deviation, a t test, a regression, a sample size — and works straight away: there is no account and nothing to install.

Every calculator shows how the answer was reached: the formula, your numbers put into it, and the intermediate sums. You can copy the result, share a link that reopens the calculator with the same data, or print the result with its steps.

How it works

• Everything runs in your browser. What you type or choose stays on your device; nothing is uploaded.
• Results are computed, not typed in. The worked examples on each page are produced by the same code the calculator runs.
• Checked against reference software. Each calculator has automated tests whose expected values come from SciPy, statsmodels or published worked examples (such as the NIST/SEMATECH e-Handbook of Statistical Methods), not from our own code.
• Methods are named. Where statisticians use different conventions (sample or population standard deviation, quartile methods, Welch or pooled t test), the page says which one it uses and usually lets you switch.
• Third-party material used on the site is listed on the credits page.

If a tool gives a wrong result, please tell us through the contact page.

Who runs it

Stats Workbench is owned and operated by SKYSEED TECH LLC. You can write to us at jun@cn8t.com.

Advertising

The site is free to use. We may show advertising in future to pay for hosting and development. If we do, ads will be labelled “Advertisement”, will never cover a tool, and are described in the privacy policy.