What is milligram?

A milligram is a metric unit of mass equal to one thousandth of a gram. It is commonly used in pharmaceutical dosing, nutritional content labelling, and laboratory chemistry.

What is microgram?

A microgram is a metric unit of mass equal to one millionth of a gram. It is used in analytical chemistry, toxicology, pharmacology, and measuring trace amounts of substances in laboratory settings.

Worked examples

1 milligram = 1,000 microgram

1 microgram = 1.000000e-09 kilogram