57 kilograms is equivalent to 125.66348944538 pounds. 
How to convert 57 kilograms to pounds?
We know (by definition) that:
We can set up a proportion to solve for the number of pounds.
Now, we cross multiply to solve for our unknown
Conversion in the opposite direction
The inverse of the conversion factor is that 1 pound is equal to 0.00795776087719298 times 57 kilograms.
It can also be expressed as: 57 kilograms is equal to
An approximate numerical result would be: fifty-seven kilograms is about one hundred and twenty-five point six five pounds, or alternatively, a pound is about zero point zero one times fifty-seven kilograms.
This is how the units in this conversion are defined:
The kilogram is the base unit of mass in the International System of Units (the Metric system) and is defined as being equal to the mass of the International Prototype of the Kilogram. The avoirdupois (or international) pound, used in both the imperial and US customary systems, is defined as exactly 0.45359237 kg, making one kilogram approximately equal to 2.2046 avoirdupois pounds. Other traditional units of weight and mass around the world are also defined in terms of the kilogram, making the IPK the primary standard for virtually all units of mass on Earth.
The pound or pound-mass (abbreviations: lb, lbm for most pounds) is a unit of mass used in the imperial units, United States customary and other systems of measurement. A number of different definitions have been used, the most common today being 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.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.
 The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.
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57 kg into lb
How to convert 57 to pounds. kg to lbs conversion
Kilograms to Pounds Converter
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To use this calculator, simply type the value in any box at left or at right. It accepts fractional values.
Using this converter you can get answers to questions like:
- How many pounds are in 57 kilograms?
- 57 kilograms is equal to how many pounds?
- How to convert kg to lbs?
- What is the kg to lb conversion factor?
- What is the formula to convert from kg to lb? among others.
Definition of kilogram
The kilogram (kg) is the SI unit of mass. It is equal to the mass of the international prototype of the kilogram. This prototype is a platinum-iridium international prototype kept at the International Bureau of Weights and Measures. One kg is approximately equal to 2.20462262184878 pounds.
Definition of pound
One pound, the international avoirdupois pound, is legally defined as exactly 0.45359237 kilograms.
Kilogram to lbs formula
To calculate a kilogram value to the corresponding value in pound, just multiply the quantity in kilogram by 2.20462262184878 (the conversion factor).
Kilogram to pounds formulae
Pounds = kilograms × 2.20462262184878
The factor 2.20462262184878 is the result from the division 1/0.45359237 (pound definition). So, a better formula is
Pounds = kilograms / 0.45359237
Values around 57 Kilogram(s)
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