Conversion formula how to transform 170 pounds to kilograms?

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

We can set up a ratio to fix for the variety of kilograms.

You are watching: What is 170 lbs in kg


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




Conversion in opposing direction

The train station of the conversion factor is the 1 kilogram is same to 0.0129683683638163 times 170 pounds.

It can additionally be expressed as: 170 pounds is equal to 1 0.0129683683638163 kilograms.


An almost right numerical result would be: one hundred and also seventy pounds is around seventy-seven point one zero kilograms, or alternatively, a kilogram is around zero allude zero one times one hundred and seventy pounds.

Units involved

This is exactly how the units in this conversion are defined:


The lb or pound-mass (abbreviations: lb, lbm for many pounds) is a unit that mass provided in the royal units, United says customary and also other systems of measurement. A variety of different meanings have to be used, the most typical today gift the global avoirdupois lb which is legally defined as precisely 0.45359237 kilograms, and which is divided into 16 avoirdupois ounces.<3> The global standard symbol for the avoirdupois lb is lb.The unit is lower from the roman inn libra (hence the abbreviation lb). The English word pound is cognate with, amongst others, German Pfund, dutch pond, and also Swedish pund. All eventually derive indigenous a borrowing into Proto-Germanic of the Latin expression lībra pondō a lb by weight, in which words pondō is the ablative situation of the Latin noun pondus.

Wikipedia page of pounds


The kilogram is the base unit of mass in the worldwide System of devices (the Metric system) and also is characterized as being same to the mass of the international Prototype that the Kilogram. The avoirdupois (or international) pound, supplied in both the imperial and also US customary systems, is identified as precisely 0.45359237 kg, make one kilogram about equal come 2.2046 avoirdupois pounds. Other classic units the weight and also mass approximately the people are also defined in regards to the kilogram, make the IPK the primary standard for virtually all devices of fixed on Earth.

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Wikipedia web page of kilograms


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