Absolute Pressure Calculator

Calculate absolute pressure based on gauge pressure and atmospheric pressure

Input Parameters

Calculation Results

Calculation Formula

Absolute Pressure = Gauge Pressure + Atmospheric Pressure

Where:
Absolute Pressure - The total pressure exerted by the gas, measured from absolute zero
Gauge Pressure - The pressure measured relative to atmospheric pressure
Atmospheric Pressure - The pressure exerted by the Earth's atmosphere at a specific location

Result

Absolute Pressure: 0.00 PSI

Absolute Pressure Calculator Calculator Usage Guide

Learn how to use the Absolute Pressure Calculator calculator and its working principles

How to Use This Calculator

  1. Enter your gauge pressure in PSI (pounds per square inch) in the first input field.
  2. Enter the atmospheric pressure in PSI in the second input field. The standard value is 14.7 PSI at sea level, but you can adjust this for different altitudes.
  3. Click the "Calculate" button to compute the absolute pressure.
  4. The result will be displayed in PSI.

Understanding Absolute Pressure

Absolute pressure is the total pressure exerted by a gas, measured from a perfect vacuum (zero pressure). It differs from gauge pressure, which measures pressure relative to atmospheric pressure.

The formula used is: Absolute Pressure = Gauge Pressure + Atmospheric Pressure

Practical Applications

  • Engineering calculations requiring precise pressure measurements
  • Industrial processes where vacuum conditions are present
  • Scientific experiments requiring accurate pressure readings
  • Altitude measurements (as air pressure decreases with altitude)

Example: If you measure a gauge pressure of 30 PSI at sea level (where atmospheric pressure is 14.7 PSI), the absolute pressure would be 30 + 14.7 = 44.7 PSI.