Categories: SI derived units of mass
The nanogram is an SI unit of mass (symbol ng) defined as:
1 ng = 1 × 10-12 kilogram (1 × 10-9 gram)
A nanogram is one billionth (1/1,000,000,000) of a gram. It is derived from the Greek word nanos, a dwarf.
picogram << nanogram << microgram
