500mg equates to about 0.0011 pound.
Go to Google and type "500mg to lbs" .... ans: = 0.00110231131 pounds
1/8 of 4g goes into 500mg
1
0.5 g
0.0005 kg
.5grams
100 mg
It depends what the density of the substance is.
5 grams are in 500mg
.5 grams
500mg eaquels half of a teaspoon of salt. Some say salt is the favorite ingrident of americans.