Weight & Mass converter

Convert Milligrams to Ounces

Convert Milligrams to Ounces instantly. 1 Milligram (mg) equals 0.00003527 Ounces (oz).

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Milligrams to Ounces conversion table

Milligrams (mg)Ounces (oz)
1 mg 0.00003527 oz
2 mg 0.00007055 oz
3 mg 0.0001058 oz
5 mg 0.0001764 oz
10 mg 0.0003527 oz
20 mg 0.0007055 oz
50 mg 0.001764 oz
100 mg 0.003527 oz
500 mg 0.01764 oz
1,000 mg 0.03527 oz
Conversion 1 Milligram = 0.00003527 Ounces · multiply Milligrams by 0.00003527

About converting Milligrams to Ounces

Milligrams (mg) and Ounces (oz) are both units of weight & mass, so converting between them is a single multiplication: multiply your Milligrams figure by 0.00003527. Ten Milligrams comes to 0.0003527 Ounces, and a hundred works out at 0.003527 Ounces.

Rule of thumb: going from Milligrams to Ounces divides, so the figure always shrinks — it takes about 28,349.52 Milligrams to make a single Ounce. If your answer came out bigger, you have the conversion the wrong way round.

What is a Milligram?

A milligram is one thousandth of a gram, and it marks the point where measurement stops being about objects and starts being about doses and traces. Nutrition labels give sodium, cholesterol and most vitamins in milligrams; pharmacies dispense tablets by them; environmental limits on lead or arsenic are written in milligrams per litre. Milligrams sit well below the resolution of any kitchen or shop scale — reading them takes a laboratory balance — which is why the unit belongs to pharmacists, chemists and regulators rather than to everyday life.

What is an Ounce?

The ounce here is the avoirdupois ounce, one sixteenth of a pound, and the qualifier matters. The troy ounce used to price gold and silver is noticeably heavier, so a "one ounce" gold coin is not an ounce of anything else — a confusion that has cost people real money. Muddier still is the fluid ounce, which measures volume rather than mass and differs between the US and the UK. The name comes from the Latin uncia, a twelfth part: it was a twelfth of the Roman libra, and the move to sixteen ounces to the pound came later.

To put both in perspective: a grain of rice weighs roughly 25 milligrams, while a slice of sandwich bread weighs about an ounce.

The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Ounces to Milligrams converter, or browse all Weight & Mass converters.

Frequently asked questions

How many Ounces are in one Milligram?

There are 0.00003527 Ounces in one Milligram.

How do I convert Milligrams to Ounces?

Multiply the number of Milligrams by 0.00003527. For example, 10 Milligrams = 0.0003527 Ounces.

What is 100 Milligrams in Ounces?

100 Milligrams is equal to 0.003527 Ounces.

How do I convert Ounces to Milligrams?

Multiply the Ounces value by 28,349.52 (or divide by 0.00003527).

Is this Milligrams to Ounces conversion exact?

The definition is exact — Milligrams and Ounces are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.

What is a Milligram?

A milligram is one thousandth of a gram, and it marks the point where measurement stops being about objects and starts being about doses and traces. Nutrition labels give sodium, cholesterol and most vitamins in milligrams; pharmacies dispense tablets by them; environmental limits on lead or arsenic are written in milligrams per litre. Milligrams sit well below the resolution of any kitchen or shop scale — reading them takes a laboratory balance — which is why the unit belongs to pharmacists, chemists and regulators rather than to everyday life.

What is an Ounce?

The ounce here is the avoirdupois ounce, one sixteenth of a pound, and the qualifier matters. The troy ounce used to price gold and silver is noticeably heavier, so a "one ounce" gold coin is not an ounce of anything else — a confusion that has cost people real money. Muddier still is the fluid ounce, which measures volume rather than mass and differs between the US and the UK. The name comes from the Latin uncia, a twelfth part: it was a twelfth of the Roman libra, and the move to sixteen ounces to the pound came later.