1 gram (g) is 1000 milligrams (mg).
"milli" means one thousandth of the stuff (1/1000).
"kilo" means a thousand times the stuff (1000x).
One milligram (mg) is one thousandth of a gram (g), and a thousand grams make up one kilogram (kg). Just like one millimeter (mm) is a thousandth of a meter (m), and a thousand meters make up one kilometer (km).
The two cannot be directly converted - as it depends on what you measure (in regards to the mili liters part. This is because liters is a "spacial" measurement (ie. how much does space does it use) and mili gram is a weight measurement - and even though f.ex. sand and milk can both be measured in litres - 1 litre of milk would NOT weigh the same as 1 litre of sand, and thus you cannot answer this question, without knowing what item you have "one mili gram of".
.001
It depends on the substance. Grams measure mass, milliliters measure volume.
This depends on the concentration of salt in water; this is your choice.
They are not compatible.
That is 3,785 ml.
1000 ml
For pure water one can say: 1 milliliter of water weighs 1 gram. 1 milliliter of vegetable oil weighs a bit less.
One. They are the same volume.
1 millimeter=0.0393700787 inches
1 liter = 1,000 milliliters
1 milliliter is 1 cubic centimeter.
Lead