Because the imperial system is ridiculous, fluid ounces are a measure of volume not weight. Depending on where you are, it's either 20 or 16 fluid ounces to the pint. If we want the density of milk, it's about 2-3% more dense than water and water weighs about 1 pound per 16 fl. oz., so a little bit over a pound.
MLB - Minor League Baseball. 1  IHL International Hockey League. 2  ACHL Atlantic Coast Hockey League. 3  FDJ Francaise Des Jeux.  MILL Major Indoor Lacrosse 1  League. MIVA Midwest Intercollegiate Volleyball Association.  ACCHL Atlantic Coast Collegiate Hockey 1  League. OVFL Ontario Varsity Football League.  AHF Asian Handball Federation.
The Official Baseball Rules govern all professional play in the United States and Canada, including the World Baseball Classic. The complete rules are published as the Official Baseball Rules at MLB.com, the official web site of Major League Baseball in the United States and Canada.