RDW-to-Platelet Ratio (RPR, liver fibrosis)
RDW-to-platelet ratio (Chen 2013) = red cell distribution width (%) / platelet count (10^9/L).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Red cell distribution width
- 16 %
- Platelet count
- 100 10^9/L
Result: RDW-to-platelet ratio 0.16 — a higher ratio marks more advanced fibrosis; the source cutoff is ~0.1 for significant fibrosis (context-dependent).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- value
- RPR = RDW (%) / platelets (10^9/L). A non-invasive liver-fibrosis marker; higher marks more advanced fibrosis. The derivation cutoff is ~0.1 for significant fibrosis; thresholds vary by etiology.
What you enter
- Red cell distribution width
- Platelet count
How this is calculated
Chen B, Ye B, Zhang J, et al. RDW to platelet ratio: a novel noninvasive index for predicting hepatic fibrosis and cirrhosis in chronic hepatitis B. PLoS One. 2013;8(7):e68780. RPR = RDW (%) / platelet count (10^9/L). Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.