Average Calculator
Get mean, median, mode, range and standard deviation for any list of numbers.
How to use: Paste or type your numbers, separated by commas, spaces or new lines, to see the average and more.
How to use the Average Calculator
When you have a list of numbers, a single value that summarises it is often more useful than the raw data. The most common summaries are the mean, median and mode, and each answers a slightly different question.
The mean is the total divided by the count, what most people call the average. The median is the middle value once the numbers are sorted, which makes it resistant to extreme values; house prices and incomes are usually reported as medians for that reason. The mode is the value that appears most often, and a list can have several modes or none.
Paste or type your numbers, separated by commas, spaces or line breaks, and the results update live. You also get the minimum, maximum, range, sum and count, plus the standard deviation, which measures how spread out the values are. Population standard deviation treats your list as the whole group; sample standard deviation treats it as a sample from a larger group and divides by one less than the count.
Non-numeric text is ignored, so you can paste values straight from a spreadsheet column. For grades, scores or measurements, check whether outliers are pulling the mean away from the median. A large gap between the two is a sign that the data is skewed.
Frequently asked questions
What is the difference between mean and median?
The mean adds everything up and divides by the count; the median is the middle number. Extreme values affect the mean far more than the median.
Can there be more than one mode?
Yes. If several values tie for the highest frequency, all of them are modes. If every value is unique, there is no mode.
Which standard deviation should I use?
Use the sample version if your numbers are a sample drawn from a bigger population, and the population version if they are the entire group.