For all practical purposes they are equal.
1000
0.0000001
0.001
there are one thousand milligrams in one gram
There are 453,592.37 milligrams in one pound.
9600ml
1 gal = 3785.41 ml 1 ml = 0.0002 gal
There are 100,000 milligrams in one hectogram.
Cubic Centimeters
There are 1000 milligrams in a gram.
That is approximately 5,000 milligrams
1,000 milligrams are in one gram