1. gram is the unit of weight.
2. The second is the unit of weight.
3. milliliter is the unit of volume.
If you convert, you must consider the specific gravity. For example, the specific gravity of water is 1, that is,100ml *1=100g; The specific gravity of an oil is 0.8, so 100g/0.8 = 125ml.
G is the unit of mass, one thousandth of a kilogram (kg), and one gram is the mass of18×14074481c-12 atoms.
1 ton = 1, 000,000 grams (one million grams)
1 kg (1 kg) = 1 1,000 g (1 kg)
1 kg = 500g (1 g = 0.002kg)
1 mg = 0.00 1 g (1 g = 1000 mg)
1 μ g = 0.0000 1 μ g (1 μ g = 1000000 μ g)
1 nanogram = 0.0000000 1 gram (1 gram = 10000000 nanogram)