A quettagram represents 10^30 grams, or one nonillion grams. The prefix quetta was added to the International System of Units to handle the massive scales of planetary and stellar masses, as well as the total mass of data storage infrastructure. For context, the mass of the Earth is about 5,972 quettagrams.
Heard on the job
The Earth weighs roughly six thousand quettagrams, giving us a clean number instead of a string of zeros.
Insider tip
The symbol for quettagram is Qg, using a capital Q to indicate a positive multiplier.