Pediatric Blood Transfusion Calculator

Health

Calculate pediatric PRBC transfusion volume. Formula: Volume (mL) = Body Weight (kg) × Desired Hgb increase (g/dL) × 3. Clinical reference only; consult pediatric hematology.

Formula

Volume = Weight(kg) × (Target - Current Hgb) × 3

20 kg child, Hgb 7→9

Inputs
  • Child Weight (kg): 20
  • Current Hemoglobin (g/dL): 7
  • Target Hemoglobin (g/dL): 9

Volume = 120 mL (~0.5 units)

Frequently asked questions

When transfuse?
Age/symptoms dependent; typically Hgb <7-9 g/dL