Plasma Volume Calculator

Estimate plasma volume from hematocrit and blood volume.

Patient Parameters

Patient Weight

Sex

Hct

Averaging Method: This tool uses the weight-based constant method (70mL/kg for men, 65mL/kg for women).

Volume Estimate

Plasma Volume2695mLIntravascular

Blood Volume4900mL

Approx. 2.69 Liters of Plasma.

Hemodynamic baseline

Disclaimer: This tool is for informational purposes only and is not a substitute for professional medical advice.

About this calculator

Overview

PV = BV × (1 − Hct). Plasma is ~55% of blood.

Fun Facts

Formula: PV = BV × (1 − Hct/100). BV from formulas.