Guides ·
How to use Average Calculator
Average Calculator. Mean, median, mode, range and std dev. The mean adds everything and divides by the count; the median is the middle value.
The short answer
To calculate an average, enter numbers separated by commas, spaces or lines. The mean is the sum divided by the count; ClickZM also shows the median, mode, range, weighted average, geometric and harmonic mean, standard deviation and quartiles.
It runs in your browser. What you enter is not uploaded.
How to use it
Enter your values in the fields; defaults show a worked example.
Pick the units or options that apply to you.
Read the result, which updates instantly as you type.
Check the formula note under the result to see exactly how it was worked out.
Limits worth knowing
What is the difference between mean and median? The mean adds everything and divides by the count; the median is the middle value. Outliers pull the mean but not the median.
Sample or population standard deviation? Use sample (n − 1) when your numbers are a sample of a bigger group, population (n) when they are the whole group.