Everyday Math

Average Calculator

Find the mean, median, range, count, and sum of a list of numbers.

Separate values with commas, spaces, or line breaks.

How to use this calculator

Enter the requested values, review any options that affect the calculation, and select Calculate. The main answer appears beside the form, with supporting details below it.

How the calculation works

The mean is the sum divided by the count. The median is the middle value after sorting, or the mean of the two middle values.

Example

For 12, 18, 23, and 31, the mean is 21 and the median is 20.5.

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Frequently asked questions

What happens to extra spaces?

Harmless whitespace is ignored. Any other invalid entry is identified.