As we celebrate the 235th birthday of our great nation, we asked a number of community leaders to share their thoughts on what the Fourth of July means to them. The Fourth of July reminds me very simply of our freedom.
Vitamin A: 1 IU is the biological equivalent of 0.3 mcg retinol, or of 0.6 mcg beta-carotene. 1  Vitamin D: 1 IU is the biological equivalent of 0.025 mcg cholecalciferol or ergocalciferol. 2  Vitamin E: 1 IU is the biological equivalent of 0.67 mg d-alpha-tocopherol, or 0.9 mg of dl-alpha-tocopherol.
The answer is 1000. We assume you are converting between microgram and milligram. You can view more details on each measurement unit: mcg or mg. The SI base unit for mass is the kilogram. 1 kilogram is equal to 1000000000 mcg, or 1000000 mg. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between micrograms and milligrams.