# ››Convert microgram to milligram

 ug mg

 Did you mean to convert ug to megagram milligram

How many ug in 1 mg? The answer is 1000.
We assume you are converting between microgram and milligram.
You can view more details on each measurement unit:
ug or mg
The SI base unit for mass is the kilogram.
1 kilogram is equal to 1000000000 ug, or 1000000 mg.
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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# ››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!