About MAD Calculator
I’m an independent developer, and I built MAD Calculator after noticing how often people need a simple, fast, easy-to-use way to work out mean absolute deviation. A small statistics task shouldn’t mean installing software, creating an account, or working through a crowded interface. My goal is to help you go from a list of numbers to a clear result with as little friction as possible.
A clearer way to understand your data
This MAD calculator shows both the answer and the individual deviations behind it. You can calculate mean absolute deviation or switch to median absolute deviation, with formulas and examples to help explain the difference. If you’re comparing MAD with standard deviation, the homepage also explains how these measures describe spread in different ways. The aim is to make the calculation useful and the method understandable, whether you’re studying statistics or checking a dataset.
Calculations stay in your browser
All calculations run entirely in your own browser. The calculator does not upload your numbers or results to any server. Website visit analytics are separate from your calculation data; you can read more in the Privacy Policy.
Help shape what comes next
I’ll keep updating the site to make it more useful and easier to use. If you spot an issue or have a feature you’d like to see, email me at wjlrain@gmail.com. I’d like to hear what would help you.