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Pound [lb or lbs]


The pound is a unit of mass commonly used in the imperial and U.S. customary systems.



  • 1 pound = 0.45359237 kilograms (exact, by definition)



  • Symbol: lb (from Latin libra)



  • Widely used in the United States and a few other countries for body weight, food, and general mass measurements.



  • There are 16 ounces (oz) in 1 pound.



Key Facts:



  • 1 lb = 16 oz



  • 1 lb ≈ 0.454 kg



  • Common in everyday U.S. and UK usage



  • Not an SI unit, but legally defined for trade and commerce



While the pound is not part of the metric system, it remains a familiar unit in daily life for many people, especially in the U.S. and UK.



Kilogram (kg)


The kilogram is the SI base unit of mass, representing the amount of matter in an object.



  • It is symbolized as kg.



  • Since 2019, the kilogram is defined by fixing the value of the Planck constant to exactly 6.62607015×10346.62607015 \times 10^{-34} joule seconds, linking mass to fundamental physical constants.



  • Before this, it was defined by a physical platinum-iridium prototype.



  • It is the only SI base unit still using the prefix "kilo" in its name.



Key points:



  • 1 kg is the base unit of mass in the metric system



  • Defined using the Planck constant for high precision



  • Widely used globally in science, industry, and everyday life



The kilogram ensures accurate and universal mass measurements across the world.



Popular Weight-and-mass Unit Conversions

Convert pound [lbs] to Other Weight-and-mass Units

pound [lbs] to kilogram kg
pound [lbs] to gram [g]
pound [lbs] to milligram [mg]
pound [lbs] to ton (metric) [t]
pound [lbs] to ounce [oz]
pound [lbs] to carat [car,ct]
pound [lbs] to ton (short) [ton (US)]
pound [lbs] to ton (long) [ton (UK)]
pound [lbs] to Atomic mass unit [u]
pound [lbs] to exagram [Eg]
pound [lbs] to petagram [Pg]
pound [lbs] to teragram [Tg]
pound [lbs] to gigagram [Gg]
pound [lbs] to megagram [Mg]
pound [lbs] to hectogram [hg]
pound [lbs] to dekagram [dag]
pound [lbs] to decigram [dg]
pound [lbs] to centigram [cg]
pound [lbs] to microgram [µg]
pound [lbs] to nanogram [ng]
pound [lbs] to picogram [pg]
pound [lbs] to femtogram [fg]
pound [lbs] to attogram [ag]
pound [lbs] to dalton
pound [lbs] to kilogram-force square second/meter
pound [lbs] to kilopound [kip]
pound [lbs] to kip
pound [lbs] to slug
pound [lbs] to pound-force square second/foot
pound [lbs] to pound (troy or apothecary)
pound [lbs] to poundal [pdl]
pound [lbs] to ton (assay) (US) [AT (US)]
pound [lbs] to ton (assay) (UK) [AT (UK)]
pound [lbs] to kiloton (metric) [kt]
pound [lbs] to quintal (metric) [cwt]
pound [lbs] to hundredweight (US)
pound [lbs] to hundredweight (UK)
pound [lbs] to quarter (US) [qr (US)]
pound [lbs] to quarter (UK) [qr (UK)]
pound [lbs] to stone (US)
pound [lbs] to stone (UK)
pound [lbs] to tonne [t]
pound [lbs] to pennyweight [pwt]
pound [lbs] to scruple (apothecary) [s.ap]
pound [lbs] to grain [gr]
pound [lbs] to gamma
pound [lbs] to talent (Biblical Hebrew)
pound [lbs] to mina (Biblical Hebrew)
pound [lbs] to shekel (Biblical Hebrew)
pound [lbs] to bekan (Biblical Hebrew)
pound [lbs] to gerah (Biblical Hebrew)
pound [lbs] to talent (Biblical Greek)
pound [lbs] to mina (Biblical Greek)
pound [lbs] to tetradrachma (Biblical Greek)
pound [lbs] to didrachma (Biblical Greek)
pound [lbs] to drachma (Biblical Greek)
pound [lbs] to denarius (Biblical Roman)
pound [lbs] to assarion (Biblical Roman)
pound [lbs] to quadrans (Biblical Roman)
pound [lbs] to lepton (Biblical Roman)
pound [lbs] to Planck mass
pound [lbs] to Electron mass (rest)
pound [lbs] to Muon mass
pound [lbs] to Proton mass
pound [lbs] to Neutron mass
pound [lbs] to Deuteron mass
pound [lbs] to Earths mass
pound [lbs] to Suns mass