A quicker estimate of red cell volume in the adult can be achieved based on a person's body weight. These give a rough estimate, with error increasing as weight deviates from normal range.
red cell volume in mL =
= (factor for gender) * (weight in kilograms)
Source
Men
Women
AABB
26 mL / kg
24 mL / kg
Cecil's Medicine
20-36 mL / kg (mean 28)
19-31 mL/kg (mean 25)
Jacobs
28.27 +/- 4.11 mL / kg
24.24 +/- 2.59 mL / kg
Mollison
26.8 mL / kg
23.3 mL / kg
Tietz
25-35 mL / kg (mean 30)
20-30 mL / kg (mean 25)
NOTE: Red blood cell volume based on lean body mass tends to be more accurate than that based on actual body weight.
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