Average Calculator
Find the arithmetic mean, median, count and sum of a list of numbers.
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How to use this tool
Enter 1 to 1,000 decimal numbers separated by commas, spaces or new lines, then calculate.
Important to know
Find the arithmetic mean, median, count and sum of a list of numbers.
Every entered value has equal weight. This is an arithmetic mean, not a weighted average; invalid tokens are rejected.
Formula and methodology
Arithmetic mean = sum of values ÷ count. The median is the middle sorted value, or the mean of the two middle values for an even count.
Example
For 2, 4 and 9, the mean is 5 and the median is 4.
Frequently asked questions
Does a repeated number count more than once?
Yes. Every occurrence is a separate value in the list.