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This converter will show you the conversion from IU International unit) to mcg (microgram) or vice versa

This is very helpful when you formulate supplements 

Vitamin Converter

Vitamin Converter

Select a vitamin:

Enter the amount:

Convert from:

Why do vitamins have different values?

The values for converting IU to mcg (or vice versa) are different for each vitamin because the conversion factors depend on the molecular weight and potency of the vitamin.

For example, the conversion factor for Vitamin D is 0.025 mcg per IU, while the conversion factor for Vitamin A varies depending on whether it’s being converted from IU to mcg retinol or mcg beta-carotene. This is because Vitamin D has a lower molecular weight and higher potency than Vitamin A.

Similarly, the conversion factor for Vitamin E is 0.67 mg per IU because it has a higher molecular weight and lower potency compared to Vitamin D.

Overall, the conversion factors are based on the specific characteristics of each vitamin and are determined by scientific studies and regulatory agencies to ensure accurate dosing and safety.

The International Unit to Microgram Converter is Helpful for:

  1. Standardization: International Units (IU) are an internationally accepted amount of a substance. This type of measure is used for fat-soluble vitamins and certain hormones, enzymes, and biologicals where the effect of the substance, not its weight, is important. However, in some circumstances, it might be necessary or easier to express this amount in weight (like micrograms).

  2. Comparability: Using such a converter helps ensure accuracy and comparability across different products or studies. For example, if one study reports vitamin D content in IUs and another in micrograms, a conversion would help compare the findings.

  3. Personal health: It could also be relevant for individuals trying to manage their nutrient intake. For example, a person may have a recommended dietary allowance given in IUs but their supplement labels are in micrograms.

  4. Health professionals: A converter would be useful for health professionals such as doctors, pharmacists, dietitians, etc., when they need to calculate or convert dosages for prescriptions or dietary recommendations.

Overall, an IU to mcg converter can be helpful for scientists, healthcare providers, patients, and anyone who is concerned about their dietary intake of particular vitamins or nutrients.

 If you are looking for a good scale to use for small precise measurements I recommend this:

Thomas Sandberg CSAN, CCNC, AADP

Thomas Sandberg CSAN, CCNC, AADP

Thomas Sandberg is a board certified animal naturopath and carnivore nutritionist. He founder of Long Living Pets Research Projects, a 30-year observational study into raw-fed dogs and cats. Thomas also consults in animal naturopathy, including the prevention of chronic diseases and longevity using all-natural modalities. With more than 20 years of experience with hundreds of cancer cases, he has a deep understanding of why so many dogs and cats get cancer today and how we can lower the risk significantly.

Need help with your pet?

Do you have health issues that you cannot resolve with conventional therapies? Are you looking for a natural approach to help your pet live a long healthy life?

This is possible, and what I do. My approach is to restore the immune system in dogs and cats so they can achieve homeostasis. That is the best protection against pathogens that can lead to diseases.


join long living pets research projects

This is the World’s Longest and Largest Observational Study into raw fed dogs and cats. Thousands of dogs and cats are participating. We will follow these dogs for their entire life and report and document their lifespan and health.

If you feed a raw food diet you are welcome to participate in the study.

More here

Long Living Pets Rescue and Rehab CenterLong Living Pets Rescue and Rehab Center adopt pets that are scheduled for euthanasia and heal them holistically.

If you want to learn more and help share this project with others…

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