Conversion formula just how to convert 20 pounds come kilograms?

We recognize (by definition) that:1⁢lb≈0.45359237⁢kg

We can set up a proportion to settle for the number of kilograms.

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1⁢lb20⁢lb≈0.45359237⁢kgx⁢kg

Now, us cross multiply to fix for our unknown x:


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Conversion in opposing direction

The train station of the conversion factor is the 1 kilogram is same to 0.110231131092439 time 20 pounds.

It can additionally be express as: 20 pounds is equal to 1 0.110231131092439 kilograms.

Approximation

An approximate numerical result would be: twenty pounds is around nine allude zero 7 kilograms, or alternatively, a kilogram is about zero suggest one one time twenty pounds.


Units involved

This is how the systems in this conversion room defined:

Pounds

The lb or pound-mass (abbreviations: lb, lbm for many pounds) is a unit the mass supplied in the imperial units, United states customary and also other systems of measurement. A number of different interpretations have been used, the most typical today being the worldwide avoirdupois lb which is legally characterized as specifically 0.45359237 kilograms, and also which is split into 16 avoirdupois ounces.<3> The global standard symbol for the avoirdupois lb is lb.The unit is descended from the roman inn libra (hence the abbreviation lb). The English word lb is cognate with, amongst others, German Pfund, netherlands pond, and Swedish pund. All eventually derive from a borrowing into Proto-Germanic of the Latin expression lībra pondō a lb by weight, in which the word pondō is the ablative case of the Latin noun pondus.

Wikipedia page of pounds

Kilograms

The kilogram is the base unit of fixed in the global System of devices (the Metric system) and is defined as being equal to the mass of the worldwide Prototype that the Kilogram. The avoirdupois (or international) pound, provided in both the imperial and US customary systems, is identified as precisely 0.45359237 kg, making one kilogram roughly equal to 2.2046 avoirdupois pounds. Other classic units that weight and mass about the civilization are also defined in regards to the kilogram, do the IPK the major standard for practically all systems of mass on Earth.

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Wikipedia page of kilograms

Footnotes

<1> The precision is 15 far-ranging digits (fourteen number to the best of the decimal point).