# ››Convert microgram to milligram

 mcg milligram

How many mcg in 1 milligram? The answer is 1000.
We assume you are converting between microgram and milligram.
You can view more details on each measurement unit:
mcg or milligram
The SI base unit for mass is the kilogram.
1 kilogram is equal to 1000000000 mcg, or 1000000 milligram.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between micrograms and milligrams.
Type in your own numbers in the form to convert the units!

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You can do the reverse unit conversion from milligram to mcg, or enter any two units below:

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# ››Definition: Microgram

The SI prefix "micro" represents a factor of 10-6, or in exponential notation, 1E-6.

So 1 microgram = 10-6 grams-force.

# ››Definition: Milligram

The SI prefix "milli" represents a factor of 10-3, or in exponential notation, 1E-3.

So 1 milligram = 10-3 grams-force.

# ››Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!