Convert Gigaliter (GL) to Ton Register (ton reg) instantly.
About these units
Gigaliter (GL)
A gigaliter equals one billion liters or one million cubic meters. It is widely used when discussing very large natural or artificial water systems. Countries quantify national water reserves, lake capacities, and large-scale water transfers in gigaliters. For example, major reservoirs, such as those used for hydroelectric power generation, often have volumes in the tens of gigaliters. Environmental scientists use GL to describe groundwater extraction, rainfall totals across large regions, and freshwater availability. The GL helps quantify planetary-scale hydrological processes in a manageable numerical range.
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.