What is a milligram?

Definition
mg

The milligram (mg) is a metric unit equal to one thousandth of a gram, used in medicine and pharmacology for dosage.

Unit system
Metric
All weight units
UnitSymbolSystem
milligrams mg Metric
grams g Metric
kilograms kg Metric
metric tonnes t Metric
ounces oz Imperial / US
pounds lb Imperial / US
stones st Imperial / US
short tons ton Imperial / US
troy ounces toz Scientific & Precious Metals