How do I convert pounds (lbs) to kilograms (kg)?
Multiply pounds by 0.453592 to get kilograms. The exact figure is 0.45359237, since a pound is defined in terms of the kilogram.
150 pounds is 68.04kg and 200 pounds is 90.72kg. For a rough figure halve the pounds and take off a tenth of that – it lands within 1%.
What are pounds (lb)?
Pound (lb) is an imperial weight unit primarily used in the United States but also common in the United Kingdom and Ireland. One pound is approximately 0.4536 kg.
Pounds are most commonly used in the United States whereas kilogram is the common weight unit in most other countries. When pounds are referenced, it normally refers to avoirdupois pounds. There is another measurement called Troy pounds which are used for precious metals.
For more information, please visit our Pounds page.
What are kilograms (kg)?
The kilogram (kg) is the SI unit of mass and is 1,000 grams. Strictly it measures mass rather than weight, though in day to day use the two get treated as one.
The kilogram is often used in physics and engineering as well generally in all walks of life in countries that have adopted the metric system.
For more information, please visit our Kilograms page.