Convert from nanogram to tonelada [Spain]

Unit Definition (nanogram)
The nanogram is a metric unit of mass equal to 10E-9 gram, or one millionth of a milligram.

Unit Definition (tonelada [Spain])
The tonelada [Spain] is a traditional weight unit of Spain corresponding to the English and metric ton. The traditional Spanish tonelada equals 2000 libras or about 2028 pounds (919.9 kilograms).