|
|
|
Petagram or petagramme is equal to 1015 gram (unit of mass), comes from a combination of the metric prefix peta (P) with the gram (g). Plural name is petagrams.
milligram or milligramme is equal to 10-3 gram (unit of mass), comes from a combination of the metric prefix milli (m) with the gram (g). Plural name is milligrams.