"milli" in the metric system means "one thousandth" . So 1 milligram means one thousandth of a gram. Your 2 milligrams is best left in that form but it is also equal to "one five-hundredth of a gram".
The weight of a carat is equivalent to 200 milligrams, so a two-carat diamond weighs 400 milligrams.
2 milligrams
800 milligrams
There are 907,184,740 milligrams in a ton.
1,500 milligrams is 0.05 ounces.
3.2 grams = 3200 milligrams
You can pretty much measure anything in milligrams.
There are 1000 milligrams in a gram. Therefore 0.68 grams is 680 milligrams.
40,000 milligrams
There are 1000 milligrams in a gram. Therefore 2 grams will be 2000 milligrams.
Two kilograms is 2,000,000 milligrams.
There are 1000 milligrams in a gram. Therefore 12.55 grams is 12,550 milligrams.