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Micrograms and Milligrams Converter

Convert between micrograms (mcg) and milligrams (mg) using this simple calculator tool. Conversion tables and formulae are also available further down.

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How many mcg are there in 1 mg?

There are 1,000 micrograms (mcg) in 1 milligram (mg). To convert mg to mcg, multiply your mg figure by 1,000.

How many mg are there in 1 mcg?

1 microgram (mcg) is equal to 0.001 milligrams (mg). To convert mcg to mg, divide your mcg figure by 1,000.

Micrograms to milligrams chart

Microgram Milligram Microgram Milligram
10 mcg 0.01 mg 100 mcg 0.1 mg
20 mcg 0.02 mg 200 mcg 0.2 mg
30 mcg 0.03 mg 300 mcg 0.3 mg
40 mcg 0.04 mg 400 mcg 0.4 mg
50 mcg 0.05 mg 500 mcg 0.5 mg
60 mcg 0.06 mg 600 mcg 0.6 mg
70 mcg 0.07 mg 700 mcg 0.7 mg
80 mcg 0.08 mg 800 mcg 0.8 mg
90 mcg 0.09 mg 900 mcg 0.9 mg
100 mcg 0.1 mg 1000 mcg 1 mg

Milligrams to micrograms chart

Milligram Microgram Milligram Microgram
1 mg 1,000 mcg 10 mg 10,000 mcg
2 mg 2,000 mcg 20 mg 20,000 mcg
3 mg 3,000 mcg 30 mg 30,000 mcg
4 mg 4,000 mcg 40 mg 40,000 mcg
5 mg 5,000 mcg 50 mg 50,000 mcg
6 mg 6,000 mcg 60 mg 60,000 mcg
7 mg 7,000 mcg 70 mg 70,000 mcg
8 mg 8,000 mcg 80 mg 80,000 mcg
9 mg 9,000 mcg 90 mg 90,000 mcg
10 mg 10,000 mcg 100 mg 100,000 mcg

You can use the converter tool at the top of the page to work out an answer for your individual calculation.

If you wish to convert between milligrams and grams, you can do so with the mg to g converter. Alternatively, you can convert between micrograms and grams here.

What is the symbol for micrograms?

Microgram is a unit in the metric system and its symbol is μg. To type the symbol μ on a Mac, press the ⌥ Option + m keys together. On Windows, keep the Alt key depressed whilst you type the digits 2 3 0.

Within medical reports and communication micrograms are commonly referred to with the symbol mcg.

If you have any suggestions or queries with this conversion tool, please contact me.

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