Conversion formula how to convert 100 pounds come kilograms?

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

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

You are watching: How many kilograms are in 100 pounds


Now, us cross main point to resolve for ours unknown x:




Conversion in opposing direction

The station of the conversion variable is that 1 kilogram is same to 0.0220462262184878 time 100 pounds.

It can also be expressed as: 100 pounds is same to 1 0.0220462262184878 kilograms.


An approximate numerical result would be: one hundred pounds is around forty-five point three five kilograms, or alternatively, a kilogram is around zero point zero 2 times one hundreds pounds.

Units involved

This is just how the devices in this conversion room defined:


The lb or pound-mass (abbreviations: lb, lbm for most pounds) is a unit the mass used in the imperial units, United claims customary and also other systems of measurement. A number of different definitions have to be used, the most usual today gift the global avoirdupois pound which is legally identified as specifically 0.45359237 kilograms, and also which is separated into 16 avoirdupois ounces.<3> The international standard symbol because that the avoirdupois lb is lb.The unit is lower from the roman inn libra (hence the abbreviation lb). The English word lb is cognate with, among others, German Pfund, dutch pond, and Swedish pund. All at some point derive from a borrowing right into Proto-Germanic of the Latin expression lībra pondō a lb by weight, in which words pondō is the ablative instance of the Latin noun pondus.

Wikipedia web page of pounds


The kilogram is the base unit of massive in the worldwide System of systems (the Metric system) and also is identified as being equal to the massive of the global Prototype that the Kilogram. The avoirdupois (or international) pound, offered in both the imperial and US customary systems, is identified as exactly 0.45359237 kg, making one kilogram approximately equal to 2.2046 avoirdupois pounds. Other classic units the weight and also mass approximately the people are additionally defined in terms of the kilogram, make the IPK the main standard for virtually all devices of massive on Earth.

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Wikipedia page of kilograms


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