WattWorth · Breathing
How much air moves through your lungs in a day?
Compare sleep, quiet time, walking and hard exercise — including breaths and exhaled CO₂.
No account. Your values stay in this browser.01 · Orientation estimate
Average values are filled in. Edit any value to match your day.
StateHours per dayAir per minuteBreaths/min
Sleep
Quiet / seated
Walking / daily movement
Running / hard exercise
Your entered day: 24 hExactly 24 hours
02 · How it is estimated
Air volume is minute ventilation × time. Exhaled CO₂ is modelled as 4% of exhaled air; mass uses about 1.84 g per litre of CO₂.
Healthy people vary widely with size, fitness, altitude and intensity. This is educational, not a lung test.
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