A nautical measurement of capacity derived from the tun, a large wooden cask in which wine could be conveyed. When calculating the tonnage of a vessel one ton is the equivalent of 100 cubic feet.
Ngumlinganiselo wamandla oqhelekileyo usukela kwifatyi enkulu, yifatyi enkulu yeplanga ekugalelwa kuyo iwayini. Xa kubalwa iitoni zenqanawa itoni enye ilingana nemilenze eli-100 ephindwe kathathu.