How to convert 100 Pounds to Kilograms
Multiply the Pounds value by the Pounds to Kilograms conversion factor: 100 / 2.20462 = 45.35929
For more information please visit: pounds to kg
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.
What is a kilogram?
A kilogram is metric unit of weight subdivided into 1,000 grams. The base unit of mass in the International System of Units (SI) is a kilogram and not, as is quite often mistaken, the gram.
One liter of water weighs 1kg.