Mean Absolute Deviation Calculator

Calculate the mean absolute deviation of a numeric list around its arithmetic mean.

About this tool

Calculate the mean absolute deviation of a numeric list around its arithmetic mean. Enter finite values in the format shown in the examples and run the calculation. This utility works locally in your browser and does not upload your data. Statistical conventions, such as the quartile method or population versus sample denominator, are stated on this page to make results interpretable. Validate the assumptions of your dataset before applying a summary statistic to decisions.

How to use this tool

  1. Enter the data values in the labeled fields.
  2. Review the method and dataset assumptions.
  3. Calculate and interpret the result in context.

How it works

Mean Absolute Deviation Calculator validates the supplied observations and applies its documented statistical definition.

When to use this tool

  • Exploring a small dataset or checking a worked example.
  • Preparing summary statistics for an analysis or report.

Limitations

The descriptive calculations in Mean Absolute Deviation Calculator do not establish causation or determine whether a statistical model is appropriate for a particular dataset.

Privacy

The numeric inputs in Mean Absolute Deviation Calculator remain in browser memory and are not uploaded by this tool.