No.
1 g = 1,000 mg 2 g = 2,000 mg 3 g = 3,000 mg . . . 100 g = 100,000 mg
50 mg = 0.050 g
1.75 g = 1,750 mg
150 mg = 1.5 g
33 mg = 0.033 g
1 g = 1,000 mg 5 g = 5,000 mg
680 mg
1 g =1000 mg84.1 g = 84100 mg
100 mg = 0,1 g
1000 mg = 1 g so 4000 mg = 4 g
1000 mg = 1 g so 308 mg = 0.308 g. Simple!