Ounces to Milligrams
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1 ounce (oz) = 28349.52313 milligram (mg). Ounce (oz) is a unit of Weight used in Standard system. Milligram (mg) is a unit of Weight used in Metric system.

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

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.

Definition of the Milligram

The milligram is defined as one one-thousandth of a gram, which is one one-millionth of a kilogram, which is the base unit of mass in the SI. The kilogram is defined by taking the fixed numerical value of the Planck constant h to be 6.62607015 ×10 −34 when expressed in the unit J s, which is equal to kg m 2 s −1, where the meter and the second are defined in terms of c and ∆ν Cs. The Planck constant is a fundamental physical constant that relates the energy of a photon to its frequency.

The milligram is a very small unit of weight, equivalent to about 0.000035 ounces or 0.000002 pounds. It is commonly used for measuring small masses, such as medicines, chemicals, vitamins, minerals and microorganisms.

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.

Where Milligrams are Used

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

• In most countries that use the SI system, milligrams are used for measuring small masses, such as medicines, chemicals, vitamins, minerals and microorganisms.
• In the United States, milligrams are sometimes used for measuring small masses, such as medicines, chemicals, vitamins, minerals and microorganisms.
• In Canada, milligrams are used for measuring small masses, such as medicines, chemicals, vitamins, minerals and microorganisms.
• In Australia and New Zealand, milligrams are used for measuring small masses, such as medicines, chemicals, vitamins, minerals and microorganisms.
• In China, milligrams are used for measuring small masses, such as medicines, chemicals, vitamins, minerals and microorganisms.

History of Milligrams

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

• The milligram was originally based on the weight of a grain of wheat or barley, which was used as a unit of mass in ancient civilizations such as Egypt, Mesopotamia and Greece.
• The milligram was part of the gram-centimeter-second system of units (CGS) that was developed in the 19th century as an alternative to the meter-kilogram-second system of units (MKS).
• The milligram was replaced by the kilogram as the base unit of mass in the SI system that was adopted in 1960 as an international standard for measurements.
• The milligram was redefined in terms of the kilogram and the Planck constant in 2019 as part of a major revision of the SI system.

Example Conversions of Milligrams to Other Units

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

• 1 mg = 0.000035 oz
• 1 mg = 0.000002 lb
• 1 mg = 0.0000000011 ton
• 1 mg = 0.001 g
• 1 mg = 0.000001 kg
• 1 mg = 1000 µg
• 1 mg = 0.000032 troy oz
• 1 mg = 0.000032 apothecaries’ oz
• 1 mg = 0.000035 Spanish oz
• 1 mg = 0.000034 French oz