Definitions for

**"Gross ton"**A measure of the internal volume, or closed in spaces, of a vessel. One gross ton is equal to one hundred cubic feet (28.3 cbm). Abbreviation: GT. Synonym: gross registered ton (grt).

A unit of measurement for the total enclosed space within a ship equal to 100 cubic feet or 2.831 cubic meters.

Unit of 100 cubic feet or 2.831 cubic meters used in arriving at the calculation of gross tonnage.