Blood Volume Calculator

Blood Volume Calculation

Calculates estimated total blood volume, red blood cell volume, and plasma volume.

When to Use
Use to estimate circulating blood volume in neonatal, paediatric, and adult patients. This may support clinical calculations where estimated blood volume is required.
Pearls/Pitfalls
This is an estimate only. Actual blood volume can vary with body composition, pregnancy, fluid balance, haemorrhage, and clinical condition.
Patient
Weight Required for all patient categories.
kg
Sex Used only for the Nadler adult blood-volume formula.
Height Required for patients aged ≥25 kg or adults.
cm
Hematocrit Optional, to calculate RBC and plasma volume. Normal reference: 36–51%.
%
Estimated Blood Volume
Total blood volume
Red blood cell volume
Plasma volume

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top