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The conversion from milligrams (mg) to international units (IU) varies depending on the substance being measured, as IU is a unit of biological activity rather than mass. Without knowing the specific substance, it is impossible to accurately convert 400 mg to IU. To determine the conversion factor, one would need to know the specific substance and its corresponding conversion rate from mg to IU as defined by the relevant regulatory body or scientific literature.

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Q: How many iu is 400 mg?
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400 IU vitamin D equals how many milligrams?

400 IU of vitamin D is equivalent to 10 micrograms (mcg) or 0.01 milligrams (mg).


How many mg is 500000 IU?

The conversion factor for International Units (IU) to milligrams (mg) varies depending on the substance being measured. For Vitamin D, the conversion factor is typically 40 IU to 1 mcg (microgram) or 1000 IU to 25 mcg. Therefore, to convert 500,000 IU of Vitamin D to milligrams, you would divide by 40 to get 12,500 mg or divide by 25 to get 20,000 mg, depending on the specific conversion factor used.


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Each IU is equal to 0. 9 milligrams so this conversion would equal 360 milligrams. The easiest way to complete this conversion is to take the number of IU's and multiply it by 0. 9.


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