Average Calculator
Compute the arithmetic mean (average) from a list of numbers. Paste values separated by commas, spaces, or new lines to get mean, sum, count, min, max, and range.
Separators supported: comma, space, tab, new line. Example: 10, 20 30. Use - for negatives.
| Metric | Value |
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Privacy: runs locally in your browser. No inputs are stored or transmitted.
How it works
Mean (average) is computed as:
mean = (sum of all values) ÷ (count of values)
This calculator also shows sum, count, min, max, and range (max − min).
Examples
- 10, 20, 30 → mean = 20
- 1.5 2.5 3.0 → mean = 2.333…
- -5, 5 → mean = 0
FAQ
- What does “average” mean?
In most contexts, “average” means the arithmetic mean: sum of values divided by how many values there are.
- Does this calculator support decimals and negative numbers?
Yes. You can enter decimals and negative numbers. Values can be separated by commas, spaces, or new lines.
- How is the mean calculated?
Mean = (x1 + x2 + … + xn) ÷ n. This tool also shows sum, count, min, max, and range.
- Can I average percentages?
You can compute the arithmetic mean of percentages, but in some cases (like growth rates) a weighted average may be more appropriate.
- Are my inputs stored?
No. All calculations run locally in your browser and are not sent to a server.