Conversion formula just how to transform 180 pounds come kilograms?
We know (by definition) that:1⁢lb≈0.45359237⁢kg
We can set up a relationship to solve for the number of kilograms.
You are watching: How many kilograms in 180 pounds
Now, us cross main point to fix for our unknown x:x⁢kg≈180⁢lb1⁢lb*0.45359237⁢kg→x⁢kg≈81.6466266⁢kg
Conversion in the contrary direction
The inverse of the conversion factor is that 1 kilogram is same to 0.0122479034547154 times 180 pounds.
An almost right numerical result would be: one hundred and also eighty pounds is about eighty-one allude six 5 kilograms, or alternatively, a kilogram is about zero suggest zero one time one hundred and eighty pounds.
This is exactly how the units in this conversion are defined:
The pound or pound-mass (abbreviations: lb, lbm for many pounds) is a unit of mass supplied in the royal units, United states customary and also other solution of measurement. A number of different interpretations have been used, the most typical today being the international avoirdupois pound which is legally characterized as specifically 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 descended from the roman inn libra (hence the abbreviation lb). The English word pound is cognate with, among others, German Pfund, netherlands pond, and Swedish pund. All ultimately derive indigenous a borrowing into Proto-Germanic of the Latin expression lībra pondō a pound by weight, in which the word pondō is the ablative instance of the Latin noun pondus.Wikipedia page of pounds
The kilogram is the basic unit of massive in the global System of systems (the Metric system) and is characterized as being equal to the massive of the global Prototype that the Kilogram. The avoirdupois (or international) pound, offered in both the imperial and also US customary systems, is identified as specifically 0.45359237 kg, making one kilogram about equal to 2.2046 avoirdupois pounds. Other traditional units of weight and mass approximately the people are additionally defined in terms of the kilogram, making the IPK the primary standard for virtually all devices of mass on Earth.
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<1> The precision is 15 significant digits (fourteen digits to the appropriate of the decimal point).