Gigatonnes to Apothecary grains conversion
Enter gigatonnes value you wish to convert:
Gigatonne is a prefixed form used to indicate multiples of tonne.
1 gigatonne = 109 tonne = 1015 gram
Apothecary grains conversion
Grain is a unit of mass in the English apothecaries' system of weights. The Medicinals Act of 1858 completely abolished the apothecaries' system in favour of the standard Avoirdupois system.