Panjang
1 inci = 2,54 cm
1 foot (ft) = 30,48 cm
1 yard (yd) = 0,914 m
1 mile = 1,609 km
1 rod = 5,029 m
1 cord = 3,625 m
1 liquid quart = 0,946 liter
1 Angstrom unit (A) = 10^-4 , 10^-8 cm
1 micron = 10^4, 10^-4 cm
1 derajat lintang ( lat) = 111,137 km
Sumber:
Ashari, Sumeru. Hortikultura aspek budidaya. UI-Press. 1995.