0.09 lbs = about 41 (40.82331) grams.
If you meant 009, i.e. 9kg, there are 9,000,000 milligrams in 9kg. If you meant 0.009kg, There are 9,000 milligrams in 0.009kg.
Not many. 0.0060 grams is about 0.00001323 pounds.
167 pounds is 75,749.93 grams.
400 grams = about 0.8818 pounds.
0.60 pounds is 272.155 grams.
4230 grams = 9.32555369 pounds
6500 grams is 14.33 pounds.
5250 grams is 11.57 pounds.
400 grams = 0.881849049 pounds
About 1,814 grams. There are 453.59 grams in one pound, so there are 4 times that many in 4 pounds.
2,721,551.28 grams
16 grams is approximately 0.035 pounds.