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Single conversion
To convert from Ounce (oz) to Microgram (mcg), use the following formula:
With is the ratio between the base units Gram (g) and Pound (lb).
Let's convert 5 Ounce (oz) to Microgram (mcg).
Using the formula:
Therefore, 5 Ounce (oz) is equal to Microgram (mcg).
Here are some quick reference conversions from Ounce (oz) to Microgram (mcg):
| Ounces | Micrograms |
|---|---|
| 0.000001 oz | mcg |
| 0.001 oz | mcg |
| 0.1 oz | mcg |
| 1 oz | mcg |
| 2 oz | mcg |
| 3 oz | mcg |
| 4 oz | mcg |
| 5 oz | mcg |
| 6 oz | mcg |
| 7 oz | mcg |
| 8 oz | mcg |
| 9 oz | mcg |
| 10 oz | mcg |
| 20 oz | mcg |
| 30 oz | mcg |
| 40 oz | mcg |
| 50 oz | mcg |
| 100 oz | mcg |
| 1000 oz | mcg |
| 10000 oz | mcg |
For all Weight converters, choose units using the From/To dropdowns above.
An ounce (oz) is a unit of mass in the imperial system, equal to 0.0625 (or 1/16) Pounds (lb).
While most people are familiar with the standard ounce used for groceries, there is another crucial measurement called the Troy Ounce.
The standard ounce, officially known as the Avoirdupois ounce, is approximately 28.35 grams and is used for weighing everyday items.
The Troy ounce, however, is slightly heavier, at approximately 31.1 grams, and is the universal standard for measuring precious metals, such as gold, silver, and platinum. This distinction is vital in the jewelry and investment markets.
A common point of confusion is the difference between an ounce (oz) and a fluid ounce (fl oz).
An ounce is a unit of mass (weight), while a fluid ounce is a unit of volume.
For example, you would use ounces to weigh a block of cheese but fluid ounces to measure a glass of milk. The weight of one fluid ounce of a liquid depends entirely on its density; one fluid ounce of honey, for instance, weighs more than one fluid ounce of water.
The word "ounce" comes from the Latin uncia.
In ancient Rome, an uncia was one-twelfth of a libra (the Roman pound), and that system helped shape many European measures.
Today's avoirdupois ounce is one-sixteenth of a pound. However, the name still preserves a direct link to Rome's old system of weights and measures.
A microgram (mcg) is a unit of mass equal to one-millionth of a gram.
While the official symbol for the microgram in the International System of Units (SI) is μg (using the Greek letter Mu), you'll often see it written as mcg.
This is particularly common in the medical and pharmaceutical fields.
Using 'mcg' is a crucial safety measure to prevent dosage errors. A handwritten 'μg' could easily be mistaken for 'mg' (milligram), which would result in a 1,000-times overdose—a potentially fatal mistake.
The microgram is the go-to unit for measuring very potent substances, where tiny differences matter for both safety and effectiveness.
It's used for specific substances like:
Measuring in micrograms makes it possible to give an effective dose without risking toxicity.
It's hard to picture how tiny a microgram is.
For perspective, a single grain of ordinary table salt weighs about 500–600 micrograms — meaning a single grain contains more than 500 micrograms.
That helps explain why we measure very potent substances in micrograms: their active doses are tiny.