Average Calculator

The mean is the sum of every value divided by how many there are. The median is the middle value once the list is sorted. The mode is the value that appears most often. They can all be different for the same list.

Use the median when the list has outliers or a skewed spread, such as incomes or house prices. A few very large or very small values pull the mean toward them, while the median stays near the center of the data.

Outliers move the mean a lot because every value goes into the sum. The median barely changes because it only depends on the middle position, and the mode does not change unless the outlier is the most common value.

If every number appears the same number of times, there is no single most frequent value, so this calculator reports no mode. When several values tie for the most appearances, it lists all of them.

Separate values with commas, spaces or new lines, so you can paste a column straight from a spreadsheet. Empty gaps are ignored, and anything that is not a number is flagged.

No. The math runs entirely in your browser, so your numbers never leave your device.