Tidal Volume: Average Lung Capacity by Age and Sex

Average tidal volume varies by age, sex, and body size:

Children and Infants (mL/kg)

• Newborns: 5–8
• 1–6 years: 6–10
• 7–12 years: 10–15

Adults

• Females: 400–500 mL
• Males: 500–600 mL

Values vary with lung capacity, respiratory conditions, fitness level.