Lung Capacity Lab Page 3

Diameter of Balloon

Radius of Balloon

Volume of Air (cm

Volume of Air (L)

(cm)

or mL)

= mL ÷ 1000

The volume you have calculated is your experimental lung capacity- it is the amount of air

your lungs actually held.

Your vital capacity is the amount of air you should be able to hold considering your height and

age. To find your vital capacity:

 Find your height in centimeters:____________

 Now use this formula and show your work:

Vital capacity = 0.041 X height in cm – 0.018 X age – 2.69

Your vital lung capacity is_____________________

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