Iron & vitamins

Ferritin unit converter

Iron storage protein

Also known as: Serum ferritin, Ferritine, Ferritina

Converter

Enter a value in any unit and all other units fill in.

µg/dL µg/L mg/L

Worked example

206.5 µg/L (middle of the reference range) = 20.6 µg/dL

Conversion formulas

µg/dL	µg/dL = µg/L × 0.1	µg/L = µg/dL × 10
mg/L	mg/L = µg/L × 0.001	µg/L = mg/L × 1000

Reference range

Unit	Adults	Men	Women
µg/dL	1.3 – 40	3 – 40	1.3 – 15
µg/L	13 – 400	30 – 400	13 – 150
mg/L	0.013 – 0.4	0.03 – 0.4	0.013 – 0.15

Source: MedlinePlus (NLM): Ferritin blood test · Last reviewed: 2026-10-14

Note from the source: Men 30-400 ng/mL, women 13-150 ng/mL; lower values indicate depleted iron stores even inside the range (MedlinePlus)

Frequently asked questions

How do I convert Ferritin from µg/L to µg/dL?

µg/dL = µg/L × 0.1. In the other direction: µg/L = µg/dL × 10.

What is the reference range of Ferritin?

For adults the range is 13 – 400 µg/L (MedlinePlus (NLM): Ferritin blood test). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for Ferritin?

Common units are µg/dL, µg/L, mg/L.