Pounds (abbr. LBS) is a unit of measurement for weight, and is commonly used in the United States and the United Kingdom. It is abbreviated as LBS, which stands for 'POUNDS' and is equal to 0.45 kilograms. The abbreviation is often used in recipes, medical prescriptions, and other measurements that involve weight. In the United Kingdom, it is also known as the Imperial pound, which is equal to 0.45359237 kilograms.