Last edit by Alaric Steinmetz on 10.08.2026
The circulating blood volume in the body depends on age[^1]. An average adult weighing 70 kg has an approximate total blood volume of 5 liters.
Age
Blood volume (ml/kg)
Premature infant
85-100
Term newborn < 1 month
85
Older than 1 month and adults
75
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Article created on 10.08.2026 · Alaric Steinmetz