What is 1200000 iu in mg?

To convert International Units (IU) to milligrams (mg), you need to know the specific substance, as the conversion factor varies. For example, 1 IU of vitamin D is equivalent to 0.025 mcg (or 0.000025 mg), so 1,200,000 IU of vitamin D would be approximately 30 mg. For other substances, the conversion would differ, so it's essential to refer to specific conversion factors for accurate results.