petagram
See also: peta-gram
English
Etymology
peta- + gram
Noun
petagram (plural petagrams)
- A unit of mass equal to 1,000,000,000,000,000 (1015) grams. Symbol: Pg
Sometimes used in Carbon Dioxide numbers, it is equivalent to Metric Gigatons (Giga) 109 x (Ton) 103 x (kg) 103 = 1015