Sum of List Calculator

About this calculator

Adding up a long list of numbers by hand is slow and error-prone, especially once the list runs to dozens of entries pasted from a spreadsheet, a receipt, or survey data. This tool parses any list separated by commas, spaces, or line breaks and instantly returns the total sum, the count of numbers found, and their average.

Students checking homework, analysts doing a quick sanity check on a data column, and anyone tallying receipts, scores, or measurements use a sum-of-list tool like this to skip manual addition entirely — paste the numbers in whatever format they’re already in, and read off the total, count, and average at once.