Number Sum
Sum numbers from text. Calculate total, average, min, max and count. Free online tool, runs in your browser.
What is a number sum calculator?
A number sum calculator is a tool that adds up a list of numbers and provides statistical results including the total sum, count, average, minimum and maximum values.
How do I add numbers using this tool?
Paste or type your numbers into the input area. Numbers can be separated by commas, spaces, tabs, semicolons or newlines. The sum and statistics update automatically.
What separators are supported?
The tool supports commas, spaces, tabs, semicolons, pipes, newlines and other common delimiters. You can also set a custom separator.
Can I handle negative numbers and decimals?
Yes, the calculator fully supports negative numbers (e.g. -5) and decimal numbers (e.g. 3.14) in all standard formats.
Is my data safe?
Yes. All calculations happen entirely in your browser. No data is sent to any server.
What statistics does this tool provide?
The tool calculates the sum (total), count of numbers, average (mean), minimum value and maximum value from your input.
Can I copy the results?
Yes, all result fields have a copy button for quick copying to clipboard.
Is this tool free to use?
Yes, this number sum calculator is completely free with no registration required.
Does it work on mobile devices?
Yes, the tool is fully responsive and works on smartphones, tablets and desktop computers.
How many numbers can I add?
There is no hard limit. The tool can handle thousands of numbers efficiently since all processing runs locally in your browser.
How to Use Number Sum
Paste any list of numbers and instantly see the total, average, minimum, maximum, and count. The calculation runs entirely in your browser — your data never leaves the page.
- Paste your numbers into the input area, e.g. 1,2,3,4,5 as shown in the placeholder.
- Match the Separator: setting to your data — comma, space, semicolon, or newline.
- Read the Total for the sum of all parsed values.
- Check Average, Min, and Max for a quick statistical overview.
- Confirm Count to verify that every value in your list was recognized.
If Count looks lower than expected, some items were skipped — align the Separator: option with how your list is actually delimited.
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