CRP (C-Reactive Protein) Unit Converter (mg/dL ↔ mg/L)
Convert CRP (C-reactive protein) between mg/dL and mg/L in either direction. Enter a value and the result updates instantly. This page performs unit conversion and cites where the factor and the reference intervals come from; it does not interpret your value.
The CRP conversion factor and where it comes from
C-reactive protein is an acute-phase protein produced by the liver; it rises with inflammation. CRP is most often reported in mg/L; some U.S. labs report it in mg/dL. High-sensitivity CRP (hs-CRP) is always reported in mg/L. The conversion here is mg/dL to mg/L (a factor of 10), not the separate mg/L to nmol/L molar conversion.
The standard conversion factor for CRP (C-reactive protein) is 10, applied as mg/dL × 10 = mg/L (and mg/L ÷ 10 = mg/dL in reverse). The mg/dL to mg/L conversion for CRP is a pure unit rescaling, not a molar conversion: 1 deciliter is one tenth of a liter, so 1 mg/dL = 10 mg/L. No molecular weight is involved. Source: Unit-of-measure definition: 1 dL = 0.1 L.
Published reference intervals
The intervals below are reproduced from U.S. National Library of Medicine, MedlinePlus: C-reactive protein (CRP) test. They are listed here for unit reference only. Whether any value is in range for you depends on your laboratory's own reference range and your clinical context, so read them alongside your report and your healthcare provider, not in place of either.
| Category | mg/dL | mg/L |
|---|---|---|
| hs-CRP: lower relative risk | - | Less than 1.0 mg/L |
| hs-CRP: average relative risk | - | 1.0-3.0 mg/L |
| hs-CRP: higher relative risk | - | Above 3.0 mg/L |
These hs-CRP bands are published cardiovascular-risk reference points; they are not a diagnosis and are interpreted in clinical context.
Pre-computed CRP conversions
Dedicated answer pages for the CRP values people search for most. Each shows the answer, the math, and a table of nearby values.
mg/dL to mg/L
Common questions
How do I convert CRP (C-reactive protein) from mg/dL to mg/L?
Multiply by 10: mg/dL × 10 = mg/L. To go the other way, divide by 10 (or multiply by 0.1).
What is the CRP (C-reactive protein) conversion factor?
10. The mg/dL to mg/L conversion for CRP is a pure unit rescaling, not a molar conversion: 1 deciliter is one tenth of a liter, so 1 mg/dL = 10 mg/L. No molecular weight is involved.
Where is mg/dL used and where is mg/L used?
CRP is most often reported in mg/L; some U.S. labs report it in mg/dL. High-sensitivity CRP (hs-CRP) is always reported in mg/L. The conversion here is mg/dL to mg/L (a factor of 10), not the separate mg/L to nmol/L molar conversion.
Related converters and reference
- Full blood test unit converter: 60+ biomarkers, any value, either direction.
- nmol/L to mg/dL by substance: the molar-to-mass conversion depends on which substance you measured.
- HbA1c to average glucose (eAG) converter.
Track CRP (C-reactive protein) over time, in either unit system
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