Digital Toolchest

Average List of Numbers

Paste a list of numbers and calculate the average in seconds. Works with one value per line for easy bulk input.

Numbers list

Paste one number per line to calculate the average.

Processing happens locally in your browser; nothing is uploaded.

Average outputMean value for the list of numbers.

0 lines in0 lines outN/A runtime

Typical lists process in under 1ms on modern browsers.

How to calculate an average

Calculate in 3 steps

Takes ~5 seconds
  1. 1
    Paste numbers

    Add one number per line in the input box.

  2. 2
    Calculate average

    Click "Calculate average" to compute the mean.

  3. 3
    Copy the result

    Copy the average for reports or analysis.

Use decimals if you need precision for financial or scientific data.

Who should use this tool?

  • Analysts and researchers
  • Students working with datasets
  • Teams cleaning numeric lists

Examples

Calculates the average of four values.

"12 18 20 25" -> 18.75

Works with decimal numbers.

"2.5 3.5 4" -> 3.3333333333333335

Handles a single value list.

"10" -> 10

Calculate averages without spreadsheets

Get the mean value of any numeric list instantly.

Use this average calculator to find the mean of a line-separated list of numbers. Paste your values, calculate the result, and copy it for reports, grading, or analytics. The tool runs entirely in your browser and supports decimal values for precision.

Fast mean

Compute the average without spreadsheets or formulas.

  • One value per line
  • Instant output
  • No server upload
Clean input

Works with integers and decimals in bulk lists.

  • Supports decimals
  • Keeps order
  • Copy results easily
Privacy first: we never send your input to a server. Everything runs locally in your browser.

Average calculation tips

Keep lists clean for reliable results.

  • Use one value per line.
  • Remove empty lines before calculating.
  • Double-check units before averaging.

Frequently asked questions

Does this support decimals?>
Yes. Decimal values are supported in the input list.
What happens with empty lines?>
Empty lines are ignored so only numeric values are averaged.
Is my data sent anywhere?>
No. All processing happens locally in your browser.

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