Week Number Calculator

Some teams say "W23" in January during ISO week 1, while others use "week 1" as the first week that contains a January 1, which can disagree. The tool shows the ISO year-week pair and a simple 1–52/53 U.S. style week, both from the same calendar day. If your business reports require one standard, use that standard everywhere on the team, not a mix of labels.

[calculator id="week-number-calculator"] — Shortcode reference; the live calculator mounts in the block below when the child theme enqueues the matching script.