Convert lbs to kg

Please provide values below to convert pound [lbs] to kilogram [kg], or vice versa.

pound
kilogram
Conversion formula: 1 pound = 0.453592 kilograms

Lbs (pounds)

A pound (lb) is a unit of weight or mass, commonly used in the United States, United Kingdom, and a few other countries. It is equal to 0.45359237 kilograms.

The pound (lb) has its roots in ancient Rome, where it was known as the "libra". The libra was a unit of weight equivalent to about 327 grams. The modern pound (lb) was standardized in the 12th century in England and has since been adopted by many countries, including the United States.

Countries that use pounds (lb): The following countries commonly use pounds (lb) as a unit of weight or mass:

  • United States
  • United Kingdom
  • Canada
  • Australia
  • New Zealand.

 

Kg (kilograms)

A kilogram (kg) is the base unit of mass in the International System of Units (SI) and is widely used in most countries. It is equal to 2.20462 pounds.

The kilogram (kg) was introduced in France during the French Revolution as a new unit of mass, defined as the mass of a liter of water. The kilogram was intended to be a universal unit of measurement, and it has since become the standard unit of mass in the International System of Units (SI).

 

What is a lbs to kg converter?

A pounds-to-kilograms converter is a tool or calculator that helps convert weight or mass from pounds (lb) to kilograms (kg) and vice versa. This is particularly useful when working with different units of measurement, especially in international trade, travel, or scientific applications.

 

Formulas

The formula to convert pounds to kilograms is:

kg = lb × 0.45359237

The formula to convert kilograms to pounds is:

lb = kg × 2.20462

 

Popular lb to kg conversions

  • 25 lb to kg: 25 lb × 0.45359237 = 11.34 kg
  • 60 lbs to kg: 60 lb × 0.45359237 = 27.22 kg
  • 10 lbs to kg: 10 lb × 0.45359237 = 4.54 kg
  • 40 lbs in kg: 40 lb × 0.45359237 = 18.14 kg
  • 20 lbs to kg: 20 lb × 0.45359237 = 9.07 kg
  • 30 lb to kg: 30 lb × 0.45359237 = 13.61 kg
  • 15 lbs a kg: 15 lb × 0.45359237 = 6.80 kg
  • 2 lbs in kg: 2 lb × 0.45359237 = 0.91 kg
  • 45 pounds to kg: 45 lb × 0.45359237 = 20.41 kg
  • 5 lbs to kg: 5 lb × 0.45359237 = 2.27 kg
  • 25 lb a kg: 25 lb × 0.45359237 = 11.34 kg

 

What is 1 pound (lb) and 1 kilogram (kg)?

1 pound (lb) is equal to 0.45359237 kilograms, and 1 kilogram (kg) is equal to 2.20462 pounds.

 

Why convert pounds to kilograms?

Converting between pounds and kilograms is crucial for several reasons:

  • International Standardization (SI): The kilogram (metric system) is the global standard used by over 95% of the world. For international trade, communication, and travel, converting to kilograms is often necessary.
  • Science and Engineering: The scientific community universally uses the metric system (SI units). All calculations, research papers, and experiments use kilograms for mass.
  • Commerce and Shipping: International shipping and product specifications typically use kilograms. If you buy a product from outside the US, its weight is likely listed in grams or kilograms.
  • Travel: Airline baggage allowances are often listed in kilograms in most countries outside the US.
  • Healthcare: While US doctors often take body weight in pounds, medical dosages and scientific health guidelines are frequently calculated using kilograms.

 

10 Most Common Pounds to Kilograms Conversions

Here are 10 very common conversions people look up, often relating to body weight, exercise weights, or baggage allowances:

Pounds (lbs)

Kilograms (kg)*

Common Use

5 lbs

2.27 kg

Small weight, cooking ingredient

10 lbs

4.54 kg

Dumbbell, sack of potatoes

20 lbs

9.07 kg

Heavy bag, carry-on luggage limit

30 lbs

13.61 kg

Toddler's weight, exercise weight

50 lbs

22.68 kg

Common checked baggage limit

100 lbs

45.36 kg

Bodyweight, large dog

120 lbs

54.43 kg

Bodyweight

150 lbs

68.04 kg

Bodyweight

180 lbs

81.65 kg

Bodyweight

200 lbs

90.72 kg

Bodyweight

*(Rounded to 2 decimals)

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Kilograms to pounds converter