The **average calculator** will calculate the mean of up to 50 numbers. An interesting aspect of the calculator is you can see how the mean changes as more values are entered. Before you use the calculator, you should know how to calculate the average, just in case you are without the internet and cannot access this calculator. Note that the mean is the same as average, and we can use these terms interchangeably.

### What is an average?

The term average has a number of different meanings. Most generally, it is a single number that is used to represent a collection of numbers. In the context of mathematics, "average" refers to the mean, specifically, the arithmetic mean. It is a relatively simple statistical concept that is widely used in many areas.

The equation below is one of the more commonly understood definitions of the average:

where the sum is the result of adding all of the given numbers, and the count is the number of values being added. For example, given the 5 numbers, 2, 7, 19, 24, and 25, the average can be calculated as such: