Convert from Paris foot to zettameter

Unit Definition (Paris foot)
The Paris foot is an English name for the French royal foot (pied de roi).

Unit Definition (zettameter)
The zettametre (or zettameter), symbol: Zm, is an SI metric unit of length. 1 zettametre is equal to 1e+21 metres, a very large distance. Not to be confused with a zeptometre.