Average Calculator
Paste or type a list of numbers to get the arithmetic mean, how many values you entered, and their sum.
How it works
The arithmetic mean is the sum of the values divided by how many there are. It is the everyday “average” for grades, measurements and similar lists. This tool does not compute a median or a mode — those answer different questions (the middle value after sorting, or the most common value).
Formula
Mean = (x₁ + x₂ + … + xₙ) ÷ n
Worked examples
- 2, 4, 6 → mean 4, count 3, sum 12
- 10, 0, 5 → mean 5, count 3, sum 15
Useful notes
- Blank input is not an average of zero; there is no mean until at least one number is present.
- Negative numbers and decimals are included in the mean like any other value.
FAQ
- How do I find the average of a list of numbers?
- Add the numbers together and divide by how many there are. The average of 2, 4 and 6 is 12 ÷ 3 = 4.
- Is this a median calculator?
- No. The median is the middle value after sorting. This page reports the arithmetic mean only.
- Are the numbers sent to a server?
- No. The list is averaged in your browser and is not transmitted.
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