How to calculate average
Mean = Σx ÷ n Median = middle value of sorted list
Worked example. Average (mean): 19.8333.
Example inputs — Numbers (separated by commas or spaces): 12, 15, 18, 22, 22, 30. Starting values are illustrative.
Mode: 22
From George Guju, founder of Calculyn · Educational calculator guidance, not professional advice.
How it works
The mean is the sum divided by the count. The median is the middle value when sorted. The mode is the most frequent value. The range is the difference between the largest and smallest.
Assumptions & limitations
- Results are rounded for display.
Formula and assumptions reviewed October 2026 by the Calculyn team. How we build our calculators
Frequently asked questions
When should I use median instead of mean?
Use the median when a few extreme values would distort the average, such as with incomes or home prices.