Zdrojová jednotka: once (fra.)
Cílová jednotka: libra (por.)
Veličina: Hmotnost
1 once na libra1 fathom na engineer's chain1 onça na tonelada1 convential foot of water na pound-force per sq. inch1 imperial nautical mile na metry1 kilometr na league1 kilometr na nail1 urna na fluid scruple UK1 qian na as1 as na rebah1 fluid ounce UK na fluid scruple UK1 fluid ounce UK na čtvrt1.4 inch na centimetry1 inch na zeměpisná míle1 sheng na minim UK