Convert Pounds to Kilograms Online

Converting pounds to kilograms is necessary for international travel, scientific work, medical calculations, fitness tracking, and shipping. Many countries, medical facilities, and scientific standards use kilograms exclusively. If you know your weight in pounds and need it in kilograms for a medical form, gym equipment, or international document, this converter gives you the answer instantly. One pound equals exactly 0.45359237 kilograms by international definition. The converter handles any pound value including fractional pounds for precise measurements. It is accurate enough for nutrition calculations, pharmacological dosing references, and engineering specifications involving weight.

Milligrams (mg)

1000000

Grams (g)

1000

Kilograms (kg)

1

Ounces (oz)

35.27396195

Pounds (lb)

2.204622622

Metric Tons (t)

0.001

FAQ

How many kilograms is 1 pound?
1 pound = exactly 0.45359237 kilograms. So 150 pounds = approximately 68.04 kg.
What is the difference between pounds and pounds-force?
Pounds (lb) as a unit of mass (avoirdupois) and pounds-force (lbf) as a unit of force are different. This converter handles pounds as mass units, equivalent to kilograms.
Can I convert stones and pounds to kilograms?
Convert stones to pounds first (1 stone = 14 pounds), add the remaining pounds, then convert the total pounds to kilograms.

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