About the Units
picogram (pg)
A unit of mass equal to 10^-12 grams or 10^-15 kilograms.
grain (gr)
A unit of mass equal to 64.79891 milligrams, originally based on the weight of a grain of barley.
Common Conversions
- 1 pg = 1.5432359e-11 gr
- 64798910000.0 pg = 1 gr