ToolBirch

Average Calculator

Mean, median, sum and range for a list of numbers.Math & Statistics

Average Calculator

Mean, median, range and totals for a list of numbers (separate with spaces, commas or newlines).

About this tool

Paste numbers in any format — spaces, commas, newlines — and see the mean, median, sum, count, minimum and maximum at once, with every formula stated.

How to use the Average Calculator tool

  1. Paste your numbers. Any separator works: spaces, commas or one per line.
  2. Read the statistics. Mean, median, sum, count, min and max together.
  3. Cross-check. The formulas are printed on the page so the numbers can be verified.

Supported formats

Input

  • Plain text or file input

Output

  • Converted or analysed output

Inputs are validated before anything is processed. Invalid values and unsupported files are rejected with a clear error instead of failing silently.

Frequently asked questions

How is the mean computed?

Sum divided by count, in double precision.

When do mean and median differ?

Skewed data pulls the mean; the median resists outliers — compare both.

What input is rejected?

Non-numeric entries, with the offending value explained.

Privacy

Everything you enter stays in this browser tab. There is no upload endpoint for tool inputs, no account, and no server-side copy of your text or files. Results are produced locally and disappear when you close the page.

No account is required and no file is ever uploaded. See the privacy policy for details about analytics and the limited data this site stores.

Known limitations

  • No weighting; every value counts equally.

Related tools

Other free tools from the same collection.

Median CalculatorThe middle value of an ordered list, outliers be damned.Standard Deviation CalculatorPopulation and sample standard deviation, clearly labelled.Fraction CalculatorExact fraction arithmetic with simplified results.Scientific CalculatorEvaluate expressions with a hand-written parser — no eval.