Digital Toolchest

Sum List of Numbers

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

Numbers list

Paste one number per line to calculate the total sum.

Processing happens locally in your browser; nothing is uploaded.

Sum outputTotal 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 a sum

Calculate in 3 steps

Takes ~5 seconds
  1. 1
    Paste numbers

    Add one number per line in the input box.

  2. 2
    Calculate sum

    Click "Calculate sum" to total the list.

  3. 3
    Copy the result

    Copy the sum for reports or analysis.

Use decimals for precise totals in finance and metrics.

Who should use this tool?

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

Examples

Calculates the sum of four values.

"10 20 30 40" -> 100

Works with decimal numbers.

"2.5 3.5 4" -> 10

Handles a single value list.

"7" -> 7

Calculate totals without spreadsheets

Get the sum of any numeric list instantly.

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

Fast totals

Compute sums without spreadsheets or formulas.

  • One value per line
  • Instant output
  • No server upload
Bulk ready

Handles long lists of integers or decimals with ease.

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

Sum calculation tips

Keep lists clean for reliable results.

  • Use one value per line.
  • Remove empty lines before calculating.
  • Verify the unit of measure before totaling.

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 summed.
Is my data sent anywhere?>
No. All processing happens locally in your browser.

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