About 0.00275 ounces.
500 mg is equivalent to 0.0176 ounces.
0.017636981 ounces ==
13 mg = 0.0004586 ounces
3.76 mg is about 0.000133 ounces.
250 mg = 0.008818 ounces
60 mg is about 0.002 ounces.
1300 mg is 0.045856 ounces.
14 mg is 0.000493835 ounces.
8 ounces = 226,796 mg
1300 mg = 0.04586 ounces
4 ounces = 113,398.093 milligrams.
600mg is 0.0211644 ounces.