Long ton
Long ton (weight ton or imperial ton) is the name for the unit called the "ton" in the avoirdupois or Imperial system of measurements, as used in the United Kingdom and several other Commonwealth countries. It has been mostly replaced by the tonne, and in the United States by the short ton. One long ton is equal to 2,240 pounds (1,016 kg), 1.12 times as a short ton, or 35 cubic feet (0.9911 m3) of salt water with a density of 64 lb/ft³ (1.025 g/ml).[1] It has some limited use in the United States, most commonly in measuring the displacement of ships, and was the unit prescribed for warships by the Washington Naval Treaty—for example battleships were limited to a mass of 35,000 long tons (36,000 tonnes; 39,000 short tons).
The long ton approximates the metric ton, 1,000 kg or 2,205 lb, more closely than the "short ton", which is equal to 2,000 pounds (910 kg).
A long ton is defined as 2,240 pounds.
A pound is defined as 453.59237 grams exactly.
So a long ton is 1,016,046.9088 grams exactly.
See also
- Short ton: 2,000 lb (907.2 kg).
- Tonnage: volume measurement used in maritime shipping. Originally based on 100 cubic feet (2.83 m3).
- Tonne, also known as a metric ton (t): 1,000 kg (2,205 lb).