Free Average Calculator

This average calculator (also known as a mean calculator) finds the average of any list of numbers and shows the sum, the count and exactly how the answer was worked out. Paste in numbers separated by commas, spaces or new lines — even straight from a spreadsheet.

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Average (Mean) Calculator

Separate values by commas, spaces, or new lines — you can mix delimiters too.

Acceptable Data Formats

FormatExample
New lines42
54
65
Comma separated42, 54, 65
Spaces42 54 65
Mixed delimiters42, 54 65,,47

Answer

Solution:

Share This Calculation

Opening this link fills in your data set and shows this result automatically.

Enter your numbers and the average, sum and count will appear here.

What Is Average, and What Is Mean?

"Average" and "mean" are two names for the same thing. Both point to the one number that best represents a whole group of numbers — a single value that sums up what's "typical" for the data set.

How to Find the Mean

  1. Count how many values are in the data set.
  2. Add every value together to get the total.
  3. Divide that total by the count.

The Formula

Mean = Sum of all values ÷ Count of values

Worked Example

Data set: 9, 10, 12, 13, 13, 13, 15, 15, 16, 16, 18, 22, 23, 24, 24, 25

Count = 16
Sum = 268
Average = 268 ÷ 16 = 16.75

A Quick Note on Outliers

The mean can be pulled around by a handful of unusually high or low numbers. If a data set has an extreme outlier — say, one salary of $2 million dragged into a list of typical $50,000 salaries — the mean stops representing anyone realistically. The median (the middle value once everything is sorted) often gives a fairer picture in those cases.

Using the Share, Print and Copy Options

  • Share: After you calculate, a ready-made link appears with your exact data set baked in. Send it to anyone and their page opens already filled in with your result showing.
  • Print: Prints just your data set and the result — no ads, menus or surrounding page clutter.
  • Copy: Copies a plain-text version of the answer straight to your clipboard, ready to paste anywhere.

Frequently Asked Questions (FAQs)

Yes, in everyday and statistical use, "average" and "mean" refer to the exact same calculation: the sum of a set of numbers divided by how many numbers there are.

Mean is the sum divided by the count. Median is the middle value once the data is sorted. Mode is whichever value appears most often. Each tells you something different about "what's typical," and they can all give quite different answers on the same data set.

Yes. A column of numbers copied from a spreadsheet pastes in as one number per line, which this calculator reads the same way as commas or spaces — no reformatting needed.

Yes, both work fine. Negative numbers and decimals are added and divided exactly the same way as whole positive numbers.

No. The link only encodes the exact data set you typed in, so anyone opening it sees the same calculation you did, nothing more.

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