What is tonne?

A tonne, also known as a metric ton, is a unit of mass equal to 1,000 kilograms. It is used in industrial shipping, cargo measurement, and large-scale material production and trade.

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.

Worked examples

1 tonne = 1.000000e+09 milligram

1 milligram = 0.000001 kilogram