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.
You can do the reverse unit conversion from mcg to mg, or enter any two units below: I'm feeling lucky, show me some random units. The SI prefix milli represents a factor of 10 -3, or in exponential notation, 1E-3. So 1 milligram = 10 -3 grams-force. The SI prefix micro represents a factor of 10 -6, or in exponential notation, 1E-6.