Convert Pound to US Ton (lb → ton (US))

Converting pounds to US tons is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in pounds

   Start with the number of pounds (lb) you want to convert.
2. 2
   Multiply by 0.0005

   The conversion factor from lb to ton (US) is 0.0005. Multiply your value by this number.
3. 3
   Read the result in US tons

   The result is your value in US tons (ton (US)).

Multiply the value in pounds by 0.0005. For the reverse direction, multiply by 2,000.

• ✓1 lb ≈ 453.6 g ≈ ½ kg. For mental conversion: kg = lb / 2.2.
• ✓1 lb = 16 oz exactly. American recipes often mix pounds and ounces.
• ✓UK shop labels often show kg and lb together; US labels are pounds only.

• ✗Using 2 instead of 2.205 when converting lb to kg — a 10% error on airline luggage.
• ✗Confusing mass pounds (lb) with pound-force (lbf) in engineering.
• ✗Assuming a British and American pound are different — they are identical (0.45359237 kg).

What is the Pound?

The pound equals exactly 0.45359237 kilograms under the 1959 international yard and pound agreement. The unit's name comes from the Latin 'libra pondo' (a pound by weight), and the abbreviation 'lb' derives from 'libra.' The pound has been the everyday weight unit in English-speaking countries for over a thousand years, with regional variations until 20th-century standardization. Today it remains the primary weight unit in the United States for body weight (a person is '170 lb' rather than 77 kg), groceries, and shipping; in the United Kingdom it persists alongside kilograms, especially for personal weight ('11 stone 4' = 158 lb). The pound relates to the ounce (16 oz = 1 lb), the stone (14 lb = 1 stone), the kilogram (1 lb ≈ 0.454 kg), and the US ton (2,000 lb = 1 ton). The international 'avoirdupois' pound is the common standard, distinct from the troy pound used for precious metals.

• Human body weight in the US and UK
• Grocery and retail food pricing in the US
• Boxing and wrestling weight divisions

What is the US Ton?

The US short ton equals exactly 2,000 pounds or 907.18474 kilograms, and is the standard weight unit for American freight, mining, construction, and waste management. Its name distinguishes it from the longer UK long ton (2,240 lb). The short ton emerged in the United States during the 19th century to simplify calculations: 2,000 is a rounder number than 2,240. Today it dominates American industry — coal mining quotes production in short tons, dump trucks are rated by short-ton capacity, and the EPA tracks emissions in short tons. Imperial-to-metric confusion can be costly: in 1999, the Mars Climate Orbiter spacecraft was lost partly due to a units mismatch involving pounds and newtons. The short ton relates to the pound (2,000 lb = 1 ton), the metric ton (1 short ton ≈ 0.907 t), and the long ton (1 long ton = 1.12 short tons).

• US freight and trucking weight limits
• US coal and mining production
• US shipbuilding and heavy industry