Ounce [oz] to Microgram [mcg] Converter

Quick Reference

1 Ounce (oz) = 28349500 Microgram (mcg)

1 Microgram (mcg) = 3.5274e-8 Ounce (oz)

How to Convert Ounce to Microgram

1 oz = 28349500 mcg
1 mcg = 3.527399072294044e-8 oz

To convert Ounce to Microgram, multiply the value by 28349500. To convert Microgram back to Ounce, divide by 28349500.

Example: convert 10 oz to mcg:
10 oz = 10 x 28349500 = 283495000 mcg

↔ Convert Microgram to Ounce

Ounce

Definition: An ounce (symbol: oz) is a unit of mass in the imperial and US customary systems of measurement. There are different types of ounces, but the most common is the avoirdupois ounce, which is equal to approximately 28.35 grams.

History/origin: The ounce has ancient origins and has been used in various forms for centuries. The avoirdupois ounce became standardized in England and was adopted by the US customary system.

Current use: Ounces are used for measuring the mass of food items, precious metals, and other commodities in countries that use the imperial or US customary systems.

Microgram

Definition: A microgram (mcg or µg) is a unit of mass in the metric system, equal to one millionth (10⁻⁶) of a gram.

History/origin: The microgram is derived from the gram, which was defined during the French Revolution as the mass of one cubic centimeter of water at the temperature of melting ice. The prefix 'micro-' indicates one millionth.

Current use: Micrograms are commonly used to measure very small amounts of substances, such as vitamins, medications, and pollutants. They are frequently used in pharmaceuticals, biochemistry, and environmental science.

Ounce to Microgram Conversion Table

Ounce [oz]	Microgram [mcg]
1 oz	28349500 mcg
2 oz	56699000 mcg
5 oz	141747500 mcg
10 oz	283495000 mcg
20 oz	566990000 mcg
50 oz	1417475000 mcg
100 oz	2834950000 mcg
200 oz	5669900000 mcg
500 oz	14174750000 mcg
1000 oz	28349500000 mcg

Common pairs of Mass

Microgram

Microgram to Milligram Microgram to Gram Microgram to Kilogram Microgram to Metric Tonne Microgram to Ounce

Milligram

Milligram to Microgram Milligram to Gram Milligram to Kilogram Milligram to Metric Tonne Milligram to Ounce

Gram

Gram to Microgram Gram to Milligram Gram to Kilogram Gram to Metric Tonne Gram to Ounce

Kilogram

Kilogram to Microgram Kilogram to Milligram Kilogram to Gram Kilogram to Metric Tonne Kilogram to Ounce

Metric Tonne

Metric Tonne to Microgram Metric Tonne to Milligram Metric Tonne to Gram Metric Tonne to Kilogram Metric Tonne to Ounce

Ounce

Ounce to Microgram Ounce to Milligram Ounce to Gram Ounce to Kilogram Ounce to Metric Tonne

Pound

Pound to Microgram Pound to Milligram Pound to Gram Pound to Kilogram Pound to Metric Tonne

Ton

Ton to Microgram Ton to Milligram Ton to Gram Ton to Kilogram Ton to Metric Tonne

Ounce [oz] to Microgram [mcg] Converter

To convert Ounce to Microgram, enter your value in the oz field above and the result in mcg will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your oz value by the fixed conversion ratio to get the equivalent in mcg.

Our Ounce to Microgram converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.

Yes, absolutely. Simply swap the source and destination units in the converter — select mcg as your input unit and oz as your output unit. The same precision and standardized conversion factor applies in both directions.

Converting between Ounce and Microgram comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.

Yes, the Ounce to Microgram converter is completely free. No account or registration is required, and there are no usage limits. It works on any device — smartphones, tablets, and desktop computers — directly in your browser.

Ounce and Microgram are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.

Ounce [oz] to Microgram [mcg] Converter

Quick Reference

1 Ounce (oz) = 28349500 Microgram (mcg)

1 Microgram (mcg) = 3.5274e-8 Ounce (oz)

How to Convert Ounce to Microgram

1 oz = 28349500 mcg
1 mcg = 3.527399072294044e-8 oz

To convert Ounce to Microgram, multiply the value by 28349500. To convert Microgram back to Ounce, divide by 28349500.

Example: convert 10 oz to mcg:
10 oz = 10 x 28349500 = 283495000 mcg

↔ Convert Microgram to Ounce

Ounce

History/origin: The ounce has ancient origins and has been used in various forms for centuries. The avoirdupois ounce became standardized in England and was adopted by the US customary system.

Current use: Ounces are used for measuring the mass of food items, precious metals, and other commodities in countries that use the imperial or US customary systems.

Microgram

Definition: A microgram (mcg or µg) is a unit of mass in the metric system, equal to one millionth (10⁻⁶) of a gram.

Ounce to Microgram Conversion Table

Ounce [oz]	Microgram [mcg]
1 oz	28349500 mcg
2 oz	56699000 mcg
5 oz	141747500 mcg
10 oz	283495000 mcg
20 oz	566990000 mcg
50 oz	1417475000 mcg
100 oz	2834950000 mcg
200 oz	5669900000 mcg
500 oz	14174750000 mcg
1000 oz	28349500000 mcg

Common pairs of Mass

Microgram

Microgram to Milligram Microgram to Gram Microgram to Kilogram Microgram to Metric Tonne Microgram to Ounce

Milligram

Milligram to Microgram Milligram to Gram Milligram to Kilogram Milligram to Metric Tonne Milligram to Ounce

Gram

Gram to Microgram Gram to Milligram Gram to Kilogram Gram to Metric Tonne Gram to Ounce

Kilogram

Kilogram to Microgram Kilogram to Milligram Kilogram to Gram Kilogram to Metric Tonne Kilogram to Ounce

Metric Tonne

Metric Tonne to Microgram Metric Tonne to Milligram Metric Tonne to Gram Metric Tonne to Kilogram Metric Tonne to Ounce

Ounce

Ounce to Microgram Ounce to Milligram Ounce to Gram Ounce to Kilogram Ounce to Metric Tonne

Pound

Pound to Microgram Pound to Milligram Pound to Gram Pound to Kilogram Pound to Metric Tonne

Ton

Ton to Microgram Ton to Milligram Ton to Gram Ton to Kilogram Ton to Metric Tonne