Cuanto es 172 libras en kilogramos?


How much are 172 pounds in kilograms? For this conversion, divide or multiply 172 by its conversion factor – for instance, 172 equals 0.45359237 kilograms.

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The pound (abbreviated as lb or lbs) is the traditional unit of weight in the United States and other nations that employ imperial systems of measurement, while kilogram (kg) serves as the standard unit in metric systems.


The pound is an American and British customary unit of measurement used primarily in weight measurement. One pound equals approximately 0.45359237 kilograms; each can be divided into 12 equal ounces to complete one measurement cycle.

A pound is an ancient imperial unit of measurement that has been used for hundreds of years, evolving over time and across cultures. First created as the Roman libra in antiquity and divided into 12 uncia or ounces, which gave rise to its name, it later spread throughout several countries before even being adopted into modern metric system usage.

Although pounds are no longer used extensively worldwide, they remain an essential unit of measurement in some regions where it remains popular. Therefore, understanding how to convert pounds into kilograms quickly is critical in saving time and money by avoiding errors when doing calculations.

Converting 172 pounds to kilograms is easy when using our free online tool! Just enter your weight in pounds and click “Calculate,” followed by selecting from among the options presented to you – our converter will display results in both kg and pounds for easy comprehension by most.

Whenever you need help calculating a particular number, our calculator has an inbuilt formula that will quickly deliver results. If desired, round off to two decimal places for more precise calculations!

Our site provides a wide range of conversion tables if you need more complex conversions. Use our search function or the sidebar navigation to locate what you need quickly! Should any queries regarding pounds to kilograms conversion arise, feel free to reach out; we are more than happy to assist.


Since 1904, scientists worldwide have relied on the kilogram as their standard unit of mass measurement. Along with other systems like meters, seconds, and moles, it forms part of what is known as the International System of Measurement or SI – used worldwide and nearly universally across nations such as the United States.

SI measures the distance between physical points and their electromagnetic counterpart, vibrating electrons. To maintain precision in these measurements, scientists use balances – special tools that measure weight and other properties of matter and energy – including one called Kibble balance, which measures roughly the size of a human head and is so accurate it has even been used to calibrate satellites!

So far, the kilogram has been defined by a piece of platinum-iridium stored at BIPM in Sevres, France – known as Le Grand K – that had been held within its vault at BIPM and used as its International Prototype Kilogram or Le Grand K for all worldwide kilogram measurements. Unfortunately, to access Le Grand K, one needs three people with keys and plenty of security – and even then, there can be no guarantee it hasn’t shed some material over time.

Scientists at BIPM recently decided to redefine the kilogram. Now based on Planck’s constant, an integral factor in quantum physics that plays an essential part in defining properties of light and other particles, their definition won’t affect your bathroom scale reading or pantry contents but will have an effectful ripple-through for researchers and industries that depend on precise measurement practices.

For instance, the kilogram will alter how scientists calculate atoms and molecules present in an object, making it more straightforward for manufacturers to create lighter yet stronger materials while using existing production equipment to manufacture their products.


The ounce is a unit of measurement used to represent mass and weight. Its value comes from dividing one pound into sixteen equal parts; to find out how many ounces there are in kilograms, use the calculator below.

The kilogram (kg) is the primary unit of mass in the International System of Units. Derived almost unchanged from an ancient Roman unit of measurement called an uncia, this unit can be found throughout the United States for measuring packaged foods and portions, postal items, fabric density of fabric and paper materials, and boxing gloves, among other things.


A stone (symbol: st) is an English and imperial unit of weight equal to 14 pounds, still used widely throughout England, Ireland, and professional sports such as boxing and wrestling, and can even refer to someone deemed immovable and unemotional by society. Before metrication was implemented across Europe, the value of local standard stones often varied widely depending on currency or commodity availability; in The Netherlands, however, the traditional stone known as “the steen” was redefined as three kilograms to align with kilogram.

A stone is often used as an insult to refer to those who have consumed too much alcohol.