how many times do humans breathe in a day
17,280-23,040 per day The average person takes about 15 breaths a minute. So, 15 x 60 (minutes in an hour)= 900 x 24 (hours in a day) = 21,600. Depending on the circumstances, the average person in- and exhales 12 times per minute 0.5 litres of air. 12 times 0.5 makes 6 litres of air per minute.