Micrograms to Ounces Converter (mcg to oz)
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Convert Ounces to Micrograms (oz to mcg) ▶

Conversion Table

micrograms to ounces
mcgoz
10000000 mcg 0.3527 oz
20000000 mcg 0.7055 oz
30000000 mcg 1.0582 oz
40000000 mcg 1.411 oz
50000000 mcg 1.7637 oz
60000000 mcg 2.1164 oz
70000000 mcg 2.4692 oz
80000000 mcg 2.8219 oz
90000000 mcg 3.1747 oz
100000000 mcg 3.5274 oz
110000000 mcg 3.8801 oz
120000000 mcg 4.2329 oz
130000000 mcg 4.5856 oz
140000000 mcg 4.9384 oz
150000000 mcg 5.2911 oz
160000000 mcg 5.6438 oz
170000000 mcg 5.9966 oz
180000000 mcg 6.3493 oz
190000000 mcg 6.7021 oz
200000000 mcg 7.0548 oz

How to convert

1 microgram (mcg) = 3.5274E-08 ounce (oz). Microgram (mcg) is a unit of Weight used in Metric system. Ounce (oz) is a unit of Weight used in Standard 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).

Definition of the Ounce

The ounce is defined differently in different systems of measurement. The most common ounce is the international avoirdupois ounce, which is equal to 28.349523125 grams or 437.5 grains. This is the ounce that is used for most purposes, such as measuring food, postal items, fabric, paper and boxing gloves. The avoirdupois ounce is one-sixteenth of an avoirdupois pound, which is defined as 7000 grains.

Another ounce is the international troy ounce, which is equal to 31.1034768 grams or 480 grains. This is the ounce that is used for measuring precious metals and gems, such as gold, silver, platinum and diamonds. The troy ounce is one-twelfth of a troy pound, which is defined as 5760 grains.

A third ounce is the apothecaries’ ounce, which is also equal to 480 grains, but it is divided into eight drams instead of twelve pennyweights like the troy ounce. The apothecaries’ ounce is used for measuring medicines and drugs.

There are also other historical or regional ounces that have different values, such as the Spanish ounce, the French ounce, the Portuguese ounce, the Roman/Italian ounce, the Dutch metric ounce and the Chinese metric ounce.

How to Convert Ounces

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

  • To convert ounces to pounds, divide by 16. For example, 32 oz = 32/16 = 2 lb.
  • To convert ounces to tons (short), divide by 32000. For example, 64000 oz = 64000/32000 = 2 tons.
  • To convert ounces to grams, multiply by 28.349523125. For example, 4 oz = 4 x 28.349523125 = 113.3980925 g.
  • To convert ounces to kilograms, multiply by 0.028349523125. For example, 8 oz = 8 x 0.028349523125 = 0.226796185 kg.
  • To convert ounces to milligrams, multiply by 28349.523125. For example, 2 oz = 2 x 28349.523125 = 56699.04625 mg.
  • To convert ounces to micrograms, multiply by 28349523.125. For example, 1 oz = 1 x 28349523.125 = 28349523.125 µg.

Where Ounces are Used

Ounces are used in different countries and regions for different applications and purposes. Here are some examples of where ounces are used:

  • In the United States, ounces are used for measuring packaged foods and food portions, postal items, areal density of fabric and paper, boxing gloves and firearms.
  • In the United Kingdom, ounces are used for measuring food portions and ingredients, woolen cloth and gold bullion.
  • In Canada, ounces are used for measuring food portions and ingredients, precious metals and gems and liquor bottles.
  • In Australia and New Zealand, ounces are used for measuring food portions and ingredients, precious metals and gems and baby weights.
  • In China, ounces are used for measuring tea leaves and pearls.
  • In India, ounces are used for measuring gold ornaments and silk fabrics.

History of Ounces

Ounces have a long history that dates back to ancient times. Here are some highlights of the history of ounces:

  • The uncia was an ancient Roman unit of measurement that was one-twelfth of a Roman pound or libra. It was also used as a unit of volume and area.
  • The uncia was borrowed into Old English as ynsan or yndsan from a Vulgar Latin form with ts for c before i (palatalization). This became inch in modern English.
  • The uncia was also borrowed into Middle English through Anglo-Norman and Middle French as unce, once or ounce. This became ounce in modern English.
  • The ounce was divided into different fractions and multiples, such as the dram, the pennyweight, the scruple and the mark.
  • The ounce was used in different systems of measurement, such as the imperial system, the US customary system, the troy system and the apothecaries’ system.
  • The ounce was standardized by international agreements, such as the international yard and pound agreement of 1959 and the international troy ounce agreement of 1958.

Example Conversions of Ounces to Other Units

Here are some examples of conversions of ounces to other units of weight:

  • 1 oz = 0.0625 lb
  • 1 oz = 0.00003125 ton
  • 1 oz = 28.349523125 g
  • 1 oz = 0.028349523125 kg
  • 1 oz = 28349.523125 mg
  • 1 oz = 28349523.125 µg
  • 1 oz = 0.911458333 troy oz
  • 1 oz = 0.911458333 apothecaries’ oz
  • 1 oz = 1.041666667 Spanish oz
  • 1 oz = 0.927272727 French oz



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