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title: "Week numbers with ISOWEEKNUM | PracticeExcel"
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# **Week numbers with ISOWEEKNUM**

In B2, find the ISO week number of the delivery date in A2, the week number used on calendars in Europe, with ISOWEEKNUM.

B2fx

|  | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 1 | Delivery date | Week |  |  |  | |
| 2 | Mar 17, 2027 |  |  |  |  | |
| 3 | Jan 4, 2027 |  |  |  |  | |
| 4 | Jan 1, 2027 |  |  |  |  | |
| 5 |  |  |  |  |  | |
| 6 |  |  |  |  |  | |
| 7 |  |  |  |  |  | |
| 8 |  |  |  |  |  | |

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