Micrograms to Milligrams Converter (mcg to mg)
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Micrograms to Milligrams


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Convert Milligrams to Micrograms (mg to mcg) ▶

Conversion Table

micrograms to milligrams
100 mcg 0.1 mg
200 mcg 0.2 mg
300 mcg 0.3 mg
400 mcg 0.4 mg
500 mcg 0.5 mg
600 mcg 0.6 mg
700 mcg 0.7 mg
800 mcg 0.8 mg
900 mcg 0.9 mg
1000 mcg 1 mg
1100 mcg 1.1 mg
1200 mcg 1.2 mg
1300 mcg 1.3 mg
1400 mcg 1.4 mg
1500 mcg 1.5 mg
1600 mcg 1.6 mg
1700 mcg 1.7 mg
1800 mcg 1.8 mg
1900 mcg 1.9 mg
2000 mcg 2 mg

How to convert

1 microgram (mcg) = 0.001 milligram (mg). Microgram (mcg) is a unit of Weight used in Metric system. Milligram (mg) is a unit of Weight used in Metric system.

Micrograms: A Unit of Weight

Definition of Micrograms

A microgram is a unit of mass or weight equal to one-millionth of a gram. It is part of the metric system, which is based on powers of ten. The symbol for microgram is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg. One microgram is equivalent to 0.001 milligrams or 0.000000001 kilograms. It is also equal to 0.000015 grains, which is a unit of weight in the imperial system.

How to Convert Micrograms

To convert micrograms to other units of weight, we need to multiply or divide by the appropriate conversion factor. For example, to convert micrograms to milligrams, we divide by 1000; to convert micrograms to grams, we divide by 1,000,000; and to convert micrograms to kilograms, we divide by 1,000,000,000. Here are some examples of conversion factors for different units of weight:

  • 1 microgram = 0.001 milligram
  • 1 microgram = 0.000001 gram
  • 1 microgram = 0.000000001 kilogram
  • 1 microgram = 0.000000035 ounce
  • 1 microgram = 0.000000002 pound
  • 1 microgram = 0.000015 grain

Where Micrograms are Used

Micrograms are very commonly used in scientific and medical fields where precision and accuracy are essential. For example, micrograms may be used to measure:

  • The mass of tiny objects or substances, such as bacteria, viruses, DNA, hormones or pollutants.
  • The dosage of some medications, such as steroids, anticoagulants or chemotherapy drugs.
  • The concentration of some nutrients or toxins in food, water or air.

Micrograms may also be used in different countries for different applications. For example, in China, micrograms are used to measure the weight of silk; in India, micrograms are used to measure the weight of spices; and in Switzerland, micrograms are used to measure the weight of gold.

History of Micrograms

The origin of micrograms can be traced back to the development of the metric system in France in the late 18th century. The metric system was designed to simplify and standardize the measurement of length, area, volume and mass by using decimal units based on the meter and the kilogram. The gram was defined as one-thousandth of a kilogram, and the microgram was defined as one-millionth of a gram.

The metric system was adopted by many countries around the world over the next two centuries, but it also faced some resistance and opposition from those who preferred the traditional units of measurement. In some cases, the metric system was modified or adapted to suit local needs and preferences. For example, in Germany, the metric system was officially adopted in 1872, but some old units such as pfund (pound) and zentner (hundredweight) are still used today.

The International System of Units (SI) was established in 1960 as a modern version of the metric system that is based on seven base units: meter, kilogram, second, ampere, kelvin, mole and candela. The SI also defines several derived units that are combinations of the base units, such as newton, joule and watt. The SI is recognized as the global standard for measurement and is used by most countries and international organizations today.

Example Conversions of Micrograms to Other Units

Here are some examples of how to convert micrograms to other units of weight using the conversion factors mentioned above:

  • 2 micrograms = 0.002 milligrams
  • 5 micrograms = 0.000005 grams
  • 10 micrograms = 0.00000001 kilograms
  • 15 micrograms = 0.00000053 ounces
  • 20 micrograms = 0.00000004 pounds
  • 25 micrograms = 0.00039 grains
Micrograms also can be marked as Microgrammes or µg (alternative British English spelling in UK).

Milligrams: A Unit of Weight

Milligrams are a unit of weight that are used in the International System of Units (SI), also known as the metric system. Milligrams are derived from the Latin word mille, which means thousand, and the French word gramme, which means weight. The symbol for milligram is mg.

How to Convert Milligrams

Milligrams can be converted to other units of weight by using conversion factors or formulas. Here are some examples of how to convert milligrams to other units of weight in the US customary system and the SI system:

  • To convert milligrams to ounces, divide by 28349.523125. For example, 1000 mg = 1000 / 28349.523125 = 0.035 oz.
  • To convert milligrams to pounds, divide by 453592.37. For example, 5000 mg = 5000 / 453592.37 = 0.011 lb.
  • To convert milligrams to tons (short), divide by 907184740. For example, 10000 mg = 10000 / 907184740 = 0.000011 ton.
  • To convert milligrams to grams, divide by 1000. For example, 2000 mg = 2000 / 1000 = 2 g.
  • To convert milligrams to kilograms, divide by 1000000. For example, 3000 mg = 3000 / 1000000 = 0.003 kg.
  • To convert milligrams to micrograms, multiply by 1000. For example, 50 mg = 50 x 1000 = 50000 µg.
Milligrams also can be marked as Milligrammes (alternative British English spelling in UK).

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