Am 27.02.2014 um 19:22 schrieb Fabrice Couvreur <fabrice1.couvreur@gmail.com>:

> Hi, 
> I see that there is no space between the words "pour"and "km". 

When you use the old units module you have to insert a control space with “\ ”, e.g.

\usemodule[units]

\starttext
6000  \Unit \Kilo \Meter \ or 2000  \Unit \Kilo \Meter.
\stoptext

but when you use MkIV you can use the predefined \unit command:

\starttext
\unit{6000 kilometer} or \unit{2000 kilo meter}
\stoptext

Wolfgang