How much is the approximate weight from air on your head?

The approximate weight of air on your head can be calculated using atmospheric pressure. At sea level, the atmospheric pressure is about 101,325 pascals, which translates to roughly 14.7 pounds per square inch. Given the average human head has a surface area of about 120 square inches, the weight of the air pressing down on it would be around 1,764 pounds. However, this pressure is distributed evenly, so it doesn't feel heavy or burdensome.