Mean Deviation Calculator
Calculate the mean deviation of a set of numbers. Mean deviation measures the average distance between each data point and the mean of the dataset.
Published by:
isCalculator Editorial Team
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How to use this tool?
Follow these steps to compute the mean deviation:
- Enter your data in the input field. Use commas or spaces to separate numbers (e.g.,
2, 4, 6, 8, 10). - Choose the mean type from the dropdown:
- Arithmetic Mean – the average of all numbers.
- Median – the middle value (or average of two middle values).
- Click "Calculate Mean Deviation" – the results will appear below.
- Interpret the results:
- Mean/Median – the central value you selected.
- Mean Deviation – the average absolute distance of each data point from that central value.
- Steps – shows the deviations and calculation details.
Tip: If you see an error, check that all entries are valid numbers and separated correctly.
Previous Results
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Frequently Asked Questions
Mean deviation is the average of the absolute deviations of data points from a central point (mean or median). It measures the spread of the data.
Enter your numbers separated by commas or spaces, select the type of central value (arithmetic mean or median), and click Calculate. The result and steps will be displayed.
The arithmetic mean is the sum of values divided by the count. The median is the middle value when data is sorted. For skewed data, median is often more representative.
