Convert lbs to kg
Enter the value to convert from pound to kilogram.
OR
11 kilograms 339.8 grams
How to Convert Pound to Kilogram
Converting pound to kilogram is straightforward using our conversion calculator.
Conversion Formula
kg = lb ÷ 2.20462262185Reverse conversion: Convert kg to lbs
Comparison: Pound vs Kilogram
When to Use Each Unit
Pound: Primary weight unit in the United States for body weight, food packaging, and general mass measurements.
Kilogram: Universal standard for mass measurement in science, commerce, and daily life worldwide except in the United States.
Common Conversion Values
- 1 lb ≈ 453.6 g
- 1 lb ≈ 0.454 kg
- 1 lb = 16 oz
- 14 lb = 1 stone
About Pound
Definition: The pound (symbol: lb) is an imperial unit of mass equal to approximately 453.6 grams, used primarily in the United States.
History: Derived from Roman "libra pondo" (pound weight). Standardized in 1959 as exactly 453.59237 grams internationally.
Current Use: Primary weight unit in the United States for body weight, food packaging, and general mass measurements.
Examples: Human weight: 100-250 lb, bag of sugar: 4 lb, newborn baby: 6-8 lb, turkey: 10-20 lb
About Kilogram
Definition: The kilogram (symbol: kg) is the SI base unit of mass, defined by fixing the Planck constant to exactly 6.62607015 × 10⁻³⁴ J⋅s.
History: Originally defined in 1795 as the mass of one liter of water. Redefined in 2019 using fundamental physical constants.
Current Use: Universal standard for mass measurement in science, commerce, and daily life worldwide except in the United States.
Examples: Human weight: 50-100 kg, bag of flour: 1-5 kg, car weight: 1000-2000 kg, laptop: 1-3 kg