Metric pound conversions

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

What is metric pound?

The metric pound is a unit of mass in the metric system equal to 0.5 kilograms (1 metric pound = 0.5 kg), the base unit of mass in the International System of Units (SI). It is also equal to 500 grams (g), or 500,000 milligrams (mg) or 500x106 micrograms (μg) (SI units of mass), or 17.636981 ounces (oz), or 7,716.179 grains (gr) or 1.10231131 pounds (lb), 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 grams (g) or 0.45359237 kilograms (kg)
  • The troy pound, equal to 373.2417216 grams (g) or 0.3732417216 kilograms (kg)
  • The metric pound, equal to 500 grams (g) or 0.5 kilograms (kg)

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

  • The tower pound, equal to about 350 grams (g) or 0.350 kilograms (kg)
  • The merchant's pound, equal to about 437.5 grams (g) or 0.4375 kilograms (kg)
  • The London pound, equal to about 466.66 grams (g) or 0.46666 kilograms (kg)
  • The Roman libra, equal to about 327 grams (g) or 0.327 kilograms (kg)
  • The Russian pound (or funt), equal to about 409.52 grams (g) or 0.40952 kilograms (kg)
  • The Jersey pound, equal to about 490 grams (g) or 0.490 kilograms (kg)

The metric pound (500 grams) is commonly used in many countries after the introduction of the metric system. The terms differ from country to country as follows: in French: livre; in German: Pfund; in Dutch: pond; in Italian: libbra; in Spanish and Portuguese: libra; in Danish and Swedish: pund

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:

metric lb

Plural:

metric pounds

Also called:

metric pound-mass (symbol: metric lbm)

Metric pound conversions: direct access

A compehensive list with conversions from metric pounds to other (metric, imperial, or customary) mass and weight measurement units is given below.