Hi
There are different week numbers
See
http://www.rondebruin.nl/weeknumber.htm
Look athe worksheet functions on that page also
And
http://www.rondebruin.nl/isodate.htm
--
Regards Ron de Bruin
http://www.rondebruin.nl
"cel504" wrote in message ...
How can I calculate the week number from a date entered into a cel, eg
21/06/05 equals week 26 and so on in Excel.
Any advice would be appreciated.