Conversion formula exactly how to transform 173 pounds come kilograms?

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

We can set up a relationship to deal with for the number of kilograms.

You are watching: How many kg is 173 pounds


Now, we cross main point to resolve for our unknown x:




Conversion in opposing direction

The station of the conversion variable is that 1 kilogram is equal to 0.0127434833632877 times 173 pounds.

It can likewise be express as: 173 pounds is same to 1 0.0127434833632877 kilograms.


An approximate numerical result would be: one hundred and seventy-three pounds is about seventy-eight suggest four six kilograms, or alternatively, a kilogram is around zero point zero one times one hundred and also seventy-three pounds.

Units involved

This is how the devices in this conversion are defined:


The pound or pound-mass (abbreviations: lb, lbm for most pounds) is a unit the mass offered in the royal units, United states customary and also other solution of measurement. A variety of different interpretations have been used, the most usual today being the global avoirdupois lb which is legally identified as exactly 0.45359237 kilograms, and which is divided into 16 avoirdupois ounces.<3> The international standard symbol because that the avoirdupois lb is lb.The unit is lower from the roman 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 native a borrowing into Proto-Germanic of the Latin expression lībra pondō a pound by weight, in which words pondō is the ablative case of the Latin noun pondus.

Wikipedia page of pounds


The kilogram is the basic unit of mass in the global System of units (the Metric system) and is characterized as being equal to the fixed of the global Prototype that the Kilogram. The avoirdupois (or international) pound, offered in both the imperial and also US customary systems, is defined as exactly 0.45359237 kg, make one kilogram roughly equal to 2.2046 avoirdupois pounds. Other traditional units of weight and mass about the civilization are likewise defined in regards to the kilogram, make the IPK the major standard for basically all systems of mass on Earth.

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Wikipedia page of kilograms


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