Petagram [Pg]
The petagram is a unit of mass in the metric system, used to measure very large quantities.
1 petagram = 10¹⁵ grams
1 petagram = 1,000,000,000,000 kilograms (1 trillion kilograms)
Symbol: Pg
Key Facts:
Commonly used in environmental science, such as measuring global carbon emissions or biomass
Much larger than everyday units like kilograms or metric tons
Part of the SI system using the prefix "peta-" meaning 1015
The petagram is useful for quantifying massive amounts of material, especially in global-scale scientific studies.