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Sum calculator
Paste a list of numbers and get the total instantly, plus count, mean, min, and max. Accepts decimals and negatives separated however you like.
Input
Sum
EmptyPaste a list of numbers to total them.
A free sum calculator that adds up any list of numbers you paste in — one per line, comma-separated, space-separated, or any mix. Along with the total it shows the count, mean, minimum, and maximum. Accepts decimals and negatives. Everything is computed locally in your browser.
How to use the sum calculator
- Paste or type a list of numbers into the input — any separator works.
- The sum, count, mean, min, and max update in real time.
- Click any stat to copy it.
What the stats mean
Sum is the total of all values. Count is the number of values parsed. Mean is the arithmetic average (sum divided by count). Min and max are the smallest and largest values in the list. Negative numbers reduce the sum and affect the min; decimals are handled with standard floating-point precision. Non-numeric tokens are ignored.
Frequently asked questions
What separators does the sum calculator accept?
Any combination of commas, spaces, tabs, and newlines. You can paste a spreadsheet column, a CSV row, or a hand-typed list and it will parse them all.
Can it add negative numbers?
Yes. Negative values with a leading minus sign are parsed correctly and reduce the sum.
Does the calculator handle decimal numbers?
Yes. Use a period as the decimal separator (e.g. 3.14). Commas as decimal separators are not supported.
Is there a limit on how many numbers I can add?
No hard limit. The parser processes every numeric token in the input, so you can paste thousands of values at once.