As nouns the difference between femtogram and picogram
is that femtogram is a unit of mass equal to 0000 000 000 000 001 grams symbol: fg while picogram is a unit of mass equal to 0000 000 000 001 grams symbol: pg.
femtogram
English
Noun
(
en noun)
A unit of mass equal to 0.000 000 000 000 001 grams. Symbol: fg
picogram
English
Noun
(
en noun)
A unit of mass equal to 0.000 000 000 001 grams. Symbol: pg
Synonyms
* micromicrogram