Absolute pressure is simply the addition of the observed gage pressure plus the value of the local atmospheric pressure.
Chat with our AI personalities
but i think the absolute pressure is P(pressure)/{p(density)*g(gravity)}
Gauge pressure is what you get when you take the reading from your tire pressure gauge. Absolute pressure is the pressure inside your tires plus the atmospheric pressure, which is roughly; 14.7 psi, 101.3 kPa (kilo-Pascals), or one atmosphere. Absolute pressure measures all of the pressure on your tires, inside and out, whereas gauge simply measures the pressure inside the tire.
423n/m2
You are supposed to add that pressure to the atmospheric pressure.
-14.7psig is the gauge pressure of an absolute vacuum.