Convert from grano, grani [Italy] to teragram

Unit Definition (grano, grani [Italy])
The grano, grani [Italy] is a traditional Italian weight unit, varying in size but typically about 50 milligrams. The plural is grani.

Unit Definition (teragram)
The teragram is a metric unit of mass equal to 1012 grams or 1 megatonne (one million metric tons). This unit is frequently used in atmospheric science and other scientific contexts where large masses are considered.