Pounds to Micrograms Converter

To convert a measurement in pounds to micrograms, multiply the value by 453,592,370. The conversion factor comes from the relationship between both units and the kilogram.

For example, to convert 5 lb to micrograms: 5 × 453,592,370 = 2,267,961,850 µg.

A pound is an imperial and US customary unit of mass equal to 16 ounces or exactly 0.45359237 kilograms. The pound derives from the Roman 'libra' (hence the symbol 'lb'). The international avoirdupois pound was fixed at exactly 0.45359237 kg by the 1959 international yard and pound agreement between English-speaking nations.

Common uses of pounds include: Body weight in the US and UK; Grocery and produce pricing in the US; Bodybuilding and weightlifting loads; Shipping weights for parcels in the US.

A microgram is a metric unit of mass equal to one millionth of a gram (0.000001 g) or one billionth of a kilogram. The microgram (sometimes abbreviated 'mcg' in medicine to avoid confusion with 'mg') became important with the discovery of vitamins and hormones that are active in tiny quantities. The prefix 'micro' comes from the Greek for 'small'.

Common uses of micrograms include: Vitamin and trace-mineral dosages (e.g. vitamin D, B12); Hormone and potent drug amounts; Environmental contaminant concentrations; Analytical chemistry and toxicology.

Here are some common values converted:

1 lb = 453,592,370 µg 5 lb = 2,267,961,850 µg 10 lb = 4,535,923,700 µg 50 lb = 22,679,618,500 µg 100 lb = 45,359,237,000 µg