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Folate · unit conversion

Pick the chemical form the label names, then the direction. Nothing is converted until a form is chosen, because the same number of IU is a different mass for each form.

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Amount on the label

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Choose a form first. IU is not a mass, so without the form there is no factor that can be said to apply.

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The factors on this page

Form	From	To	Factor	Source	Year
Folic acid (folate)	mcg	mcg DFE	1.7	FDA Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels	2019

Forms that are not listed above have no factor checked against a source yet, so this page does not convert them.

As published

mcg DFE = mcg naturally occurring folate + (1.7 × mcg folic acid). [Also: "Folate (mcg DFE) = Folic acid (mcg per serving) × 1.7 (conversion factor for folic acid)"]
FDA Guidance for Industry: Converting Units of Measure for Folate, Niacin, and Vitamins A, D, and E on the Nutrition and Supplement Facts Labels

What the units mean on the panel · Folate