WEEKNUM Google Sheets Formula
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WEEKNUM Formula Syntax
Example Use Case
Returns the week number of a given date in Google Sheets.
Understanding the WEEKNUM Function in Google Sheets
The WEEKNUM function returns the week number (1-53) of a date, with options for the week start day.
Why Use WEEKNUM in Google Sheets?
WEEKNUM is useful for tracking progress, reporting, or grouping data by week.
Example with Sample Data
| Date | Formula | Result |
|---|---|---|
| 2025-02-25 | =WEEKNUM("2025-02-25") | 9 |
| 2023-12-31 | =WEEKNUM("2023-12-31", 2) | 53 |
| 2024-01-01 | =WEEKNUM("2024-01-01") | 1 |
The table shows how WEEKNUM calculates week numbers (1=Sunday start, 2=Monday start).
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