Proteins & inflammation

CRP unit converter

C-reactive protein (inflammation marker)

Also known as: C-reactive protein, C-reaktives Protein, PCR, Protéine C réactive, Proteína C reactiva, Proteina C reattiva

Converter

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

mg/dL mg/L µg/dL µg/L

Worked example

1.5 mg/L (middle of the reference range) = 0.15 mg/dL

Conversion formulas

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

Reference range

Unit	Adults
mg/dL	0 – 0.3
mg/L	0 – 3
µg/dL	0 – 300
µg/L	0 – 3000

Source: MedlinePlus (NLM): C-reactive protein · Last reviewed: 2026-10-14

Note from the source: The majority of healthy adults have levels below 0.3 mg/dL (3 mg/L); values rise slightly with age and are higher in women and African Americans (MedlinePlus)

Frequently asked questions

How do I convert CRP from mg/L to mg/dL?

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

What is the reference range of CRP?

For adults the range is 0 – 3 mg/L (MedlinePlus (NLM): C-reactive protein). Reference ranges differ between laboratories and partly by sex and age; use the range printed on your lab report.

Which units are used for CRP?

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