Convert Ton Register (ton reg) to Gill (UK) (gi (UK)) instantly.
About these units
Ton Register (ton reg)
A register ton, or ton register, is a unit of volume, not mass, equal to 100 cubic feet. It is used in maritime contexts to measure the internal capacity of ships—specifically cargo-carrying volume, not weight. Ship registries rely on register tons to calculate taxes, port fees, and cargo classifications. The unit dates back to 19th-century maritime law, where consistent volumetric measurement was critical for international shipping regulation. Despite changes in global trade and containerization, register tons remain important for historical vessel documentation, as well as for understanding older merchant and naval ship specifications.
Gill (UK) (gi (UK))
A UK gill equals 142 mL, traditionally used in measuring spirits, whiskey, beer, and cooking ingredients. The gill was once a common pub measure, with quarter-gill and half-gill servings used before modern standardized alcohol units replaced them. While now mostly obsolete, the gill is still recognized in historical cocktail recipes, British literature, and the study of older trade practices.