Unit Converter

Convert between micrograms, milligrams, and International Units using a ratio from your own product labeling.

This tool is for informational and educational purposes only. It is not medical advice. Always verify dosing with a qualified healthcare provider. Conversion factors are approximate and may vary by manufacturer and preparation. Verify with your provider.

Convert amounts

Micrograms and milligrams convert universally. For International Units, enter the IU-per-mg factor printed on your specific product labeling.

IU per 1 mg (optional)

Leave blank to work in mcg and mg only. When set, IU conversions use this ratio only — it is not medical advice and varies by product.

Unit

Amount (mcg)

Conversion factors are approximate and may vary by manufacturer and preparation. Verify with your provider.