Calculator
RDW Index Calculator
Differentiate iron deficiency anemia from beta-thalassemia trait using the RDW index.
Calculate
All fields required unless notedEnter your values and press Calculate to see the result.
Formula & Clinical Notes
Formula
RDW Index = (MCV × RDW) / RBC
Clinical Notes
An RDW index below 220 suggests beta-thalassemia trait; above 220 suggests iron deficiency anemia. It is used in microcytic anemias and should be interpreted with confirmatory testing.
Recent Calculations
-
Inputs:Result: