Milligram [mg] to Ounce [oz] Converter

Quick Reference

1 Milligram (mg) = 3.5274e-5 Ounce (oz)

1 Ounce (oz) = 28349.5 Milligram (mg)

How to Convert Milligram to Ounce

1 mg = 0.00003527399072294044 oz
1 oz = 28349.5 mg

To convert Milligram to Ounce, divide the value by 28349.5 (equivalently, multiply by 3.5274e-5). To convert Ounce back to Milligram, multiply by 28349.5.

Example: convert 10 mg to oz:
10 mg = 10 x 0.00003527399072294044 = 0.00035273990722940437 oz

↔ Convert Ounce to Milligram

Milligram

Definition: A milligram (symbol: mg) is a unit of mass in the metric system. It is defined as one thousandth (1/1000) of a gram.

History/origin: The milligram is derived from the gram, the base unit of mass in the metric system. The metric system originated in France in the late 18th century. The prefix 'milli-' denotes a factor of 1/1000.

Current use: Milligrams are commonly used for measuring small quantities of substances, such as pharmaceutical drugs, vitamins, and food additives. It is also used in scientific research and analysis.

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.

Milligram to Ounce Conversion Table

Milligram [mg]	Ounce [oz]
1 mg	0.00003527399072294044 oz
2 mg	0.00007054798144588088 oz
5 mg	0.0001763699536147022 oz
10 mg	0.0003527399072294044 oz
20 mg	0.0007054798144588088 oz
50 mg	0.0017636995361470223 oz
100 mg	0.0035273990722940445 oz
200 mg	0.007054798144588089 oz
500 mg	0.01763699536147022 oz
1000 mg	0.03527399072294044 oz

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

Milligram [mg] to Ounce [oz] Converter

To convert Milligram to Ounce, enter your value in the mg field above and the result in oz 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 mg value by the fixed conversion ratio to get the equivalent in oz.

Our Milligram to Ounce 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 oz as your input unit and mg as your output unit. The same precision and standardized conversion factor applies in both directions.

Converting between Milligram and Ounce 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 Milligram to Ounce 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.

Milligram and Ounce 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.

Milligram [mg] to Ounce [oz] Converter

Quick Reference

1 Milligram (mg) = 3.5274e-5 Ounce (oz)

1 Ounce (oz) = 28349.5 Milligram (mg)

How to Convert Milligram to Ounce

1 mg = 0.00003527399072294044 oz
1 oz = 28349.5 mg

To convert Milligram to Ounce, divide the value by 28349.5 (equivalently, multiply by 3.5274e-5). To convert Ounce back to Milligram, multiply by 28349.5.

Example: convert 10 mg to oz:
10 mg = 10 x 0.00003527399072294044 = 0.00035273990722940437 oz

↔ Convert Ounce to Milligram

Milligram

Definition: A milligram (symbol: mg) is a unit of mass in the metric system. It is defined as one thousandth (1/1000) of a gram.

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.

Milligram to Ounce Conversion Table

Milligram [mg]	Ounce [oz]
1 mg	0.00003527399072294044 oz
2 mg	0.00007054798144588088 oz
5 mg	0.0001763699536147022 oz
10 mg	0.0003527399072294044 oz
20 mg	0.0007054798144588088 oz
50 mg	0.0017636995361470223 oz
100 mg	0.0035273990722940445 oz
200 mg	0.007054798144588089 oz
500 mg	0.01763699536147022 oz
1000 mg	0.03527399072294044 oz

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