138.2 pounds to stones


138.2 pounds equals 9.8714 stones

You can also convert 138.2 pounds to stones and pounds.


Conversion formula

Multiply the amount of pounds by the conversion factor to get the result in stones:

138.2 lbs × 0.0714286 = 9.8714 st

How to convert 138.2 pounds to stones?

The conversion factor from pounds to stones is 0.0714286, which means that 1 pounds is equal to 0.0714286 stones:

1 lbs = 0.0714286 st

To convert 138.2 pounds into stones we have to multiply 138.2 by the conversion factor in order to get the amount from pounds to stones. We can also form a proportion to calculate the result:

1 lbs → 0.0714286 st

138.2 lbs → m(st)

Solve the above proportion to obtain the mass m in stones:

m(st) = 138.2 lbs × 0.0714286 st

m(st) = 9.8714 st

The final result is:

138.2 lbs → 9.8714 st

We conclude that 138.2 pounds is equivalent to 9.8714 stones:

138.2 pounds = 9.8714 stones

Result approximation

For practical purposes we can round our final result to an approximate numerical value. In this case one hundred thirty-eight point two pounds is approximately nine point eight seven one stones:

138.2 pounds ≅ 9.871 stones

Conversion table

For quick reference purposes, below is the pounds to stones conversion table:

pounds (lbs) stones (st)
139.2 pounds 9.942861 stones
140.2 pounds 10.01429 stones
141.2 pounds 10.085718 stones
142.2 pounds 10.157147 stones
143.2 pounds 10.228576 stones
144.2 pounds 10.300004 stones
145.2 pounds 10.371433 stones
146.2 pounds 10.442861 stones
147.2 pounds 10.51429 stones
148.2 pounds 10.585719 stones

Units definitions

The units involved in this conversion are pounds and stones. This is how they are defined:


The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement. A number of different definitions have been used; the most common today is the international avoirdupois pound, which is legally defined as exactly 0.45359237 kilograms, and which is divided into 16 avoirdupois ounces. The international standard symbol for the avoirdupois pound is lb; an alternative symbol is lbm (for most pound definitions), # (chiefly in the U.S.), and ℔ or ″̶ (specifically for the apothecaries' pound). The unit is descended from the Roman libra (hence the abbreviation "lb"). The English word pound is cognate with, among others, German Pfund, Dutch pond, and Swedish pund. All ultimately derive from a borrowing into Proto-Germanic of the Latin expression lībra pondō ("a pound by weight"), in which the word pondō is the ablative case of the Latin noun pondus ("weight"). Usage of the unqualified term pound reflects the historical conflation of mass and weight.


The stone or stone weight (abbreviation: st.) is an English and imperial unit of mass now equal to 14 pounds (6.35029318 kg). England and other Germanic-speaking countries of northern Europe formerly used various standardised "stones" for trade, with their values ranging from about 5 to 40 local pounds (roughly 3 to 15 kg) depending on the location and objects weighed. The United Kingdom's imperial system adopted the wool stone of 14 pounds in 1835. With the advent of metrication, Europe's various "stones" were superseded by or adapted to the kilogram from the mid-19th century on. The stone continues in customary use in Britain and Ireland used for measuring body weight, but was prohibited for commercial use in the UK by the Weights and Measures Act of 1985.