150 mcg (I suppose that is micro grams) is 150/1000000 gms = 0.00015
4.5 grams = 4,500 mg
855mg is 0.855 grams (mg x 0.001 = grams).
87.6 mg = 0.0876 grams
(150)/(number of mg in each unit)
925 milligrams = 0.925 grams
1500 mg
This is not a valid conversion; milligrams (mg) and grams (g) are measures of weight or mass while milliliters (mL or ml) measure volume.
8.548 grams. Multiply 8548 mg x (1000 mg/g)
It is 536 mg.
1 mg = .001 grams, so 2632.4 mg = 2.6324 grams.
3.1mg is 0.0031 grams (mg divided by 1,000 OR mg x 0.001 = grams)** 1 gram = 1,000mg