Plasma Volume
Average build male with normal hematocrit
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Evidence-based calculations Used in clinical settings worldwide Regular monitoring recommended
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Why: This calculation helps assess important health parameters for clinical and personal wellness tracking.
How: Enter your values above and the calculator will apply validated formulas to compute your results.
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Healthy Adult Male
Average build male with normal hematocrit
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Healthy Adult Female
Average build female with normal hematocrit
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Obese Patient
Obese patient requiring adjusted calculation
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Pregnant Woman (2nd Trimester)
Physiological expansion of blood volume
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Endurance Athlete
Expanded blood volume typical of training
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Anemic Patient
Low hematocrit affecting RBC volume calculation
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Polycythemia Patient
Elevated hematocrit with increased RBC mass
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High Altitude Resident
Physiologically elevated hematocrit
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Measurements
Demographics & Clinical Context
For educational and informational purposes only. Verify with a qualified professional.
🏥 Health Facts
— WHO
— CDC
What is Plasma Volume?
Plasma volume is the liquid portion of blood that carries blood cells, proteins, and other substances. It represents approximately 55% of total blood volume in healthy adults. Accurate estimation of plasma and total blood volume is essential for many clinical applications.
Plasma (55%)
- 92% water
- Proteins (albumin, globulins, fibrinogen)
- Electrolytes, nutrients, hormones
- Volume = TBV × (1 - Hct)
Red Blood Cells (45%)
- Carry oxygen via hemoglobin
- Represent the hematocrit
- Volume = TBV × Hct
- ~70 mL/kg in males, ~65 mL/kg in females
Nadler Equation Formulas
Male Blood Volume (Liters):
Female Blood Volume (Liters):
Where:
H = Height in meters
W = Weight in kg
TBV = Total Blood Volume in liters
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