Average Calculator
The arithmetic mean is the sum of the values divided by their count. The median is the middle value after sorting, or the average of the two middle values.
This calculator is free to use. Enable JavaScript to enter your values and see a result instantly.
How it works
The arithmetic mean is the sum of the values divided by their count. The median is the middle value after sorting, or the average of the two middle values.
Worked example
For 12, 18, 24, and 30, both the mean and median are 21.
Keep in mind
Extreme values can pull the mean away from a typical value.