# Pound conversions

The pound conversion selector above selects the mass/weight measurement unit to convert to starting from pounds (lb). To make a conversion starting from a unit of mass other than pound, simply click on the "Reset" button.

## About pound

The international **avoirdupois pound** (also pound-mass or simply "**pound**") is a unit of mass in the Imperial and US customary systems of units equal to 0.45359237 kilograms (1 lb = 0.45359237 kg), the base unit of mass in the International System of Units (SI).

One pound (lb) is also equal to 453.59237 grams (g), or 453,592.37 milligrams (mg) or 453.59237 × 10^{6} micrograms (μg) (SI units of mass), or 16 ounces (oz), or 7,000 grains (gr) or 1.2152777(7) troy pounds (lb t), which are US customary / Imperial units of mass.

The **pound definition** varies depending on the system of units used, as follows:

- The avoirdupois pound (or simply "pound"), equal to 453.59237 × 10
^{-3}kilograms - The troy pound, equal to 373.2417216 × 10
^{-3}kilograms - The metric pound, equal to 500 × 10
^{-3}kilograms

Over time, various pounds have been recorded. Examples of pound units include:

- The tower pound, equal to about 350 × 10
^{-3}kilograms - The merchant's pound, equal to about 437.5 × 10
^{-3}kilograms - The London pound, equal to about 466.66 × 10
^{-3}kilograms - The Roman libra, equal to about 327 × 10
^{-3}kilograms - The Russian pound (or funt), equal to about 409.52 × 10
^{-3}kilograms - The Jersey pound, equal to about 490 × 10
^{-3}kilograms

*Notes:*

(i) The name "pound" comes from the Latin phrase "libra pondo" which means "a pound weight"

(ii) The abbreviation "lb" for pound comes from the Roman "libra"; the "lbs" abbreviation is also commonly used to indicate the plural unit "pounds"

Symbol: lb

Plural: pounds

Also called: pound (plural: pounds, symbol: lb, lbs (informal)), pound-mass (symbol: lbm)

Pound conversions: a detailed list with conversions from pounds to other (metric, imperial, or customary) mass and weight measurement units is shown below.

- pound to atomic mass unit (lb to amu)
- pound to carat (lb to ct)
- pound to centigram (lb to cg)
- pound to crith
- pound to dalton (lb to Da)
- pound to decigram (lb to dg)
- pound to dram (lb to dr)
- pound to electron mass (lb to m
_{e}) - pound to grain (lb to gr)
- pound to gram (lb to g)
- pound to hundredweight (UK) (lb to cwt)
- pound to hundredweight (US) (lb to cwt)
- pound to kilogram (lb to kg)
- pound to kilotonne (lb to kt)
- pound to kip
- pound to long ton
- pound to metric grain (lb to metric gr)
- pound to metric pound (lb to metric lb)
- pound to metric ton (lb to t)
- pound to microgram (lb to μg)
- pound to milligram (lb to mg)
- pound to nanogram (lb to ng)
- pound to ounce (lb to oz)
- pound to pennyweight (lb to dwt)
- pound to picogram (lb to pg)
- pound to quarter (UK) (lb to qtr)
- pound to quarter (US) (lb to qtr)
- pound to quintal
- pound to short ton
- pound to tonne (lb to t)
- pound to troy ounce (lb to oz t)
- pound to troy pound (lb to lb t)