Convert tumbler (U.S.) to koku (Japanese volume)
Selected category: volume.
Definition and details for tumbler (U.S.):
Tumbler is another name for the U.S. cup.
Definition and details for koku (Japanese volume):
Koku is a Japanese traditional unit of volume equal to 100 sho or about 180.4 liters. Koku was defined as the volume of rice a person would eat in one year.