So I just calculated how many years Luxembourg has left until it's full.
As you surley know, as one of the biggest small countries in Europe, the Grand-Duchy is a whopping 2586,4 km² big, or 258.640 hectars.
17.646 hectars are already used by buildings, streets, etc.
That leaves us 240.994 hectars with "nature".
Every day, 0,5 hectars are used up by constructions, which means 182,625 hectars in a year (365,25 days).
There are 1.319,61 years left until Luxembourg is full.
re: conversions for Germans
@noiob gerne