Count Calculator
Count how many numbers are in your list. Supports CSV/Excel format data import with detailed breakdowns.
Frequently Asked Questions
How does the count calculator work?
Paste or type your numbers separated by commas (,，), spaces, or new lines, then click Count Numbers. The calculator parses every valid value and reports how many numbers it found, along with a breakdown by sign, parity, and uniqueness.
What does "count" include?
The count includes every valid number in your input: positive numbers, negative numbers, zeros, integers, and decimals. Invalid entries (like words or typos) are flagged as errors and excluded from the count.
What are unique values and duplicates?
Unique values counts how many distinct numbers appear in your list. Duplicates is the total count minus the unique count, telling you how many entries repeat an earlier value.
Can I count numbers pasted from Excel or CSV?
Yes. Copy a column or row straight from Excel, Google Sheets, or a CSV file and paste it into the input box. Newlines, tabs, commas, and spaces are all treated as separators, so the paste works without cleanup.
Why do even and odd counts not always add up to the total?
Even and odd only apply to integer values. If your list contains decimals like 2.5, those values are counted in the total but not in the even or odd categories.
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