Convert Pound (lb) to Kilogram (kg)

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What is Pound (lb)?

A pound (symbol: lb) is a unit of mass used in the imperial and US customary systems. It is defined as exactly 0.45359237 kg.

History

Descended from the Roman libra. The international avoirdupois pound was standardized in 1959.

Current Use

Commonly used in the US for body weight and groceries.

What is Kilogram (kg)?

The kilogram (symbol: kg) is the base unit of mass in the International System of Units (SI). It is currently defined based on the Planck constant.

History

Originally defined as the mass of one liter of water at freezing point. Until 2019, it was defined by a physical prototype 'Le Grand K'.

Current Use

The global standard for measuring mass of people, food, and commodities.

Pound (lb) to Kilogram (kg) Conversion Table

Pound (lb)Kilogram (kg)
0.01 pound0.004536 kilogram
0.1 pound0.045359 kilogram
1 pound0.453592 kilogram
2 pound0.907185 kilogram
3 pound1.360777 kilogram
4 pound1.814369 kilogram
5 pound2.267962 kilogram
10 pound4.535924 kilogram
20 pound9.071847 kilogram
50 pound22.679619 kilogram
100 pound45.359237 kilogram
1000 pound453.59237 kilogram