Heart & coagulation

Fibrinogen unit converter

Clotting protein (acute-phase marker)

Also known as: Factor I, Clauss fibrinogen, Fibrinogène, Fibrinógeno, Fibrinogênio

Converter

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

g/L mg/dL g/dL mg/L

Worked example

3 g/L (middle of the reference range) = 300 mg/dL

Conversion formulas

mg/dL	mg/dL = g/L × 100	g/L = mg/dL × 0.01
g/dL	g/dL = g/L × 0.1	g/L = g/dL × 10
mg/L	mg/L = g/L × 1000	g/L = mg/L × 0.001

Reference range

Unit	Adults
g/L	2 – 4
mg/dL	200 – 400
g/dL	0.2 – 0.4
mg/L	2000 – 4000

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

Note from the source: 200-400 mg/dL (2.0-4.0 g/L) (MedlinePlus)

Frequently asked questions

How do I convert Fibrinogen from g/L to mg/dL?

mg/dL = g/L × 100. In the other direction: g/L = mg/dL × 0.01.

What is the reference range of Fibrinogen?

For adults the range is 2 – 4 g/L (MedlinePlus (NLM): Fibrinogen 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 Fibrinogen?

Common units are g/L, mg/dL, g/dL, mg/L.