Average calculator

How it works

Enter the numbers in any list form: commas, spaces, semicolons or new lines all separate values. The count is how many numbers were read and the sum adds them all. The mean divides the sum by the count. For the median the list is sorted first, then the middle value is taken, or the average of the two middle values when the count is even. The mode is the value that appears most often, shown as a list when several tie; if nothing repeats, the tool says so instead of inventing one. The range is the largest value minus the smallest. Tokens that are not plain numbers are ignored and listed below the result so you can see exactly what was left out.

Worked example

For 4, 8, 15, 16, 23 and 42 the count is 6, the sum is 108 and the mean is 108 divided by 6, which is 18. Sorted, the list puts 15 and 16 in the middle, so the median is (15 + 16) divided by 2, which is 15.5. No value repeats, so there is no mode, and the range is 42 minus 4, which is 38.

Questions and answers