What are pounds?
Pounds are an imperial unit of weight normally used in the United States but can be found in use in the United Kingdom and Ireland as well. One pound is equal to 0.4536 kilograms.
We provide several conversion calculators from pounds on this site including the most popular: pounds to kilograms.
Note that pounds are normally referring to avoirdupois pounds. This should not be confused with Troy pounds which is used almost exclusively to measure precious metals.
There are two types of hundredweights
There are two types of hundredweights; long and short.
The long hundredweight, also known as the imperial hundredweight, is 112 pounds or about 50.802 kilograms, so 20 of them make a long ton.
The short hundredweight, also known as the net hundredweight, is the American one and is exactly 100 pounds, so 20 of them make a short ton. Milk and cattle prices in the United States are still quoted per hundredweight.