Average Calculator
Calculate the average (mean), median, sum, minimum, and maximum of a list of numbers. Paste or type values separated by commas or spaces.
How it works
Average (arithmetic mean) formula
Average = (x₁ + x₂ + … + xₙ) / n Median = middle value of the sorted list
The mean adds every value and divides by how many there are, so every value influences it. The median is the middle of the sorted list, which makes it resistant to outliers — one extreme value can pull the mean far from a typical value but barely moves the median.
Worked example
Test scores 85, 92, 78, 90, 88: the sum is 433 and there are 5 scores, so the average is 433 / 5 = 86.6. The sorted middle value (median) is 88.
Frequently asked questions
When should I use the median instead of the mean?
Use the median when the data has outliers or is skewed — incomes, home prices, response times. One billionaire in a room changes the mean income drastically but not the median.
Can I average percentages or averages?
Only when each one represents the same number of underlying items. Otherwise you need a weighted average that accounts for group sizes.
How many numbers can I enter?
As many as you like — paste an entire column from a spreadsheet. Values can be separated by commas, spaces, or line breaks.