Nicholas Knight wrote:
Shouldn't we give both, then?
Why? If the reader really needs non-metric measurements, they can consult [[conversion of units]] (which, actually, may need a bit of expanding for ease of use as a conversion table... I might look into that in a bit). That said, http://www.wikipedia.org/wiki/Wikipedia%3AManual_of_Style currently reads, in part, "For now, if using American or Imperial, give metric as a courtesy. If using metric, remember that many readers will not know what you mean and will be aided by the equivalent.", so yes, provide both, I'm afraid.
Cleaning up orphan articles (more than 500 again!), I found http://www.wikipedia.org/wiki/Conversion_Table%3Acm-inches
Maybe it should be deleted, though...
Magnus