Pound (mass)

Pound (mass), Unit of mass.

The pound or pound-mass is a unit of mass used in the imperial, United States customary and other systems of measurement. Various definitions have been used; the most common today is 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; an alternative symbol is lbm (for most pound definitions), # (chiefly in the U.S.), and ℔ or ″̶ (specifically for the apothecaries' pound). 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.

Pound (force)
5 months ago

Pound (force) ... with pound-mass (symbol: lb), often simply called pound, which is a unit of mass. The pound-force is equal to the gravitational force exerted on a mass of...

Pound
5 months ago

Pound ... Pound or Pounds may refer to: Pound (currency), a unit of currency Pound sterling, the official currency of the United Kingdom Pound (mass), a unit of...

Foot–pound–second system
4 months ago

Foot–pound–second system ... foot–pound–second system or FPS system is a system of units built on three fundamental units: the foot for length, the (avoirdupois) pound for either mass...

Poundal
6 months ago

Poundal ... which is to rescale units of force. Since a pound of force (pound force) accelerates a pound of mass (pound mass) at 32.174 049 ft/s2 (9.80665 m/s2; the acceleration...

Short ton
6 months ago

Short ton ... The short ton is a mass measurement unit equal to 2,000 pounds-mass (907.18474 kg). It is commonly used in the United States, where it is known as simply...

Pound sterling
6 months ago

Pound sterling ... The pound sterling (symbol: £; ISO code: GBP), known in some contexts simply as the pound or sterling, is the official currency of the United Kingdom...

Slug (unit)
6 months ago

Slug (unit) ... Systems of measure either define mass and derive a force unit or define a base force and derive a mass unit (cf. poundal, a derived unit of force in a force-based...

Troy weight
5 months ago

Troy weight ... pennyweight (24 grains), the troy ounce (20 pennyweights), and the troy pound (12 troy ounces). The troy grain is equal to the grain-unit of the avoirdupois...

Pound-foot (torque)
4 months ago

Pound-foot (torque) ... nor moment of mass (as the symbol ft-lb rather than lbf-ft would imply). Similarly, an inch-pound (or pound-inch) is the torque of one pound of force applied...

Linear density
5 months ago

Linear density ... (mass) per foot ounce (mass) per inch pound (mass) per yard: used in the North American railway industry for the linear density of rails pound (mass)...

Newton (unit)
6 months ago
Anglo-Saxon pound
6 months ago
English Engineering Units
5 months ago
Grain (unit)
6 months ago
Mass
6 months ago
Specific impulse
6 months ago
Mass versus weight
4 months ago
Ounce
5 months ago
Weight
6 months ago
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