Absolute Pressure Calculator

Absolute pressure is the pressure detected above the absolute zero pressure. It is described as the sum of atmospheric pressure and measuring pressure. Absolute pressure is measured using a barometer. Gauge pressure is very relative to atmospheric pressure, if the pressure of Gauge is higher than absolute pressure then the pressure is positive. Otherwise, it is negative.

Absolute Pressure = Gauge Pressure + Atmospheric Pressure

Below given are the simple and easy step-by-step process to calculate the absolute pressure. You can get the answer without any issues by following these guidelines.

• Observe gauge pressure and atmospheric pressure values from the given problem.
• Enter the value of gauge pressure in the given gauge pressure field.
• And the same for atmospheric pressure too.
• Then the sum of the gauge and atmospheric Pressure is absolute pressure.

Now, let us look into the formula for absolute pressure.

Absolute Pressure(P_a) = Gauge Pressure ( P_g ) + Atmospheric Pressure ( P_atm )

P_a = P_g + P _atm

Once, we look into the picture for a clear understanding

Question 1: A pressure gauge measures the reading of 32psi and if the atmospheric pressure is 14psi. Calculate the absolute pressure that correlates to this gauge pressure?

Solution:

Given Parameters,

P_a =?, P_g = 32psi, P_atm =14psi

Formula,

P_a = P_g + P _atm

Substitute the values,

P_a = 32psi +14 psi = 46psi

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1. What is absolute pressure in simple words?

In simple words, absolute pressure is nothing but a sum of atmospheric pressure and gauge pressure.

2. What is the best tool to calculate absolute pressure?

The absolute pressure calculator tool is the best tool to get accurate answers for absolute pressure

3. How absolute pressure is measured?

Absolute pressure is measured on the barometer.

4. What is the formula for absolute pressure?

P_a = P_g + P _atm Where, P_a = absolute pressure P_g = gauge pressure P_atm = atmospheric pressure