Blood Volume Calculator
Calculate estimated Total Blood Volume (TBV), plasma volume, and red cell mass using Nadler's precise anatomical equation based on height, weight, and sex.
Somatometric Data
Clinical Precision & Methodology
The Total Blood Volume (TBV) calculator uses Nadler's Equation, which is mathematically superior to simple weight-based rule-of-thumb approximations. It is critical for anesthesia, major surgery, fluid resuscitation, and transfusion medicine.
Nadler's Equation
Considered the clinical standard, Nadler's formula accounts for the non-linear relationship between height, body mass index, and blood volume, avoiding overestimations in obese patients.
Compartmental Breakdown
Automatically partitions total blood volume into plasma volume and red cell mass using standard physiological hematocrit reference ranges for each biological sex.
Thermal Receipt Export
Generates a high-resolution, perfectly scaled PNG image designed specifically for 80mm thermal printers, enabling instant clinical handouts.
Nadler Formula Constants
Where h = height in meters, w = weight in kg