As nouns the difference between nanogram and milligram
is that nanogram is a unit of mass equal to 0.000 000 001 grams. Symbol: ng while milligram is an SI unit of mass, equivalent to one thousandth of a gram. Symbol: mg.
nanogram
English
Noun
(
en noun)
A unit of mass equal to 0.000 000 001 grams. Symbol: ng
milligram
Alternative forms
* milligramme
Noun
(
en noun)
An SI unit of mass, equivalent to one thousandth of a gram. Symbol: mg