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
When to use this tool
This tool is designed for quick, practical tasks such as everyday calculations, data formatting, or simple conversions. It is best used when you need fast results without installing software or using complex tools.
When to use
- Quick checks or one-time calculations
- Validating or converting data before using it elsewhere
- Simple tasks that do not require advanced software
When not to use
- Critical financial, legal, or medical decisions
- Large-scale or automated processing
- Situations requiring guaranteed precision beyond basic validation
Always review results before using them in important contexts.
About this tool
This tool helps you perform quick utility operations directly in your browser. It runs entirely in your browser without sending data to a server.
You can use this tool when handling simple tasks without installing additional software. The results should be interpreted as a processed output based on your input data.
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.