Calculate Number Sum

Calculate Number Sum adds up all the valid numbers from your input. It works with line-by-line or CSV-style entries. You can skip invalid values, round the result, and control decimal precision all with a live output that flashes on update.

Paste your input above or import a file below.
No file chosen
Supported file types: .txt, .csv, .tsv, .log, .json, .xml, .md, .ini, .yaml, .yml, .html, .htm, .css
Total valid numbers: 0
Options
Skip invalid lines
Parse as CSV
Round sum

How to Use:

  1. Paste your numbers into the input box one per line or comma-separated.
  2. Or import a plain-text file using the “Choose File” button.
  3. In the Options box:
    • Enable “Parse as CSV” if your numbers are separated by commas, tabs, or spaces.
    • Use “Skip invalid lines” to ignore non-numeric entries.
    • Turn on “Round sum” and choose decimal places to control precision.
  4. The total sum will appear instantly in the right-hand box.
  5. Copy or export the sum using the buttons provided.

What Calculate Number Sum can do:

This tool takes your numbers even from a messy list and gives you a clean total. It supports live rounding, CSV-style input, and skips bad data if you want. Everything updates on the fly with a count of how many valid numbers it found.

Example:

Input:

42
100
3.14
hello

With Options: Skip invalid ✓, Round sum ✓, Decimals: 2

Output:

145.14

Common Use Cases:

Perfect for quick total calculations, budget sheets, logs, or datasets where you don’t want to mess with formulas or spreadsheets. Whether you’ve got a clean list or a messy CSV, this tool keeps it simple and fast.

Useful Tools & Suggestions:

After summing things up, Find the Maximum Number is great for spotting the peak in your list. And if your input’s a little chaotic, Normalize List Item Separators can clean things up before you start crunching.

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