Maternal Blood Volume Estimator
This calculator helps estimate peripartum circulating blood volume, which is crucial for interpreting hemorrhage severity and guiding resuscitation. It accounts for body composition in obese individuals.
Please enter a valid age.
Please enter a valid height.
Please enter a valid weight.
Please enter a valid gestational age (0-42 weeks, 0-6 days).
Estimated Blood Volume: mL
Calculated BMI: kg/m²
Disclaimer: This calculator is not recommended for a BMI > 50.
Note: This calculation uses the Lemmens formula (for adult females) as a baseline. Maternal blood volume significantly increases during pregnancy (typically 40-50% by term). This calculator provides a foundational estimate, but clinical interpretation should consider the specific gestational age and individual patient factors.