Ideal Gas Equation Calculator

The ideal gas approach in engineering analysis is a very useful thing. While we are dealing with gases and the properties of these gases, this approach makes our calculations much more basic. So, we can use the ideal gas equation calculator if we can use the ideal gas approach.

Equation of state
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Equation of State Calculator

We call the ideal gas equation the equation of state. We prepared a calculator that you can use easily. This calculator will be very useful in the complex engineering calculations that you are making. Probably, you will use in lots of time this formula in your calculations. So, this calculator will make your business much easier.

Ideal Gas Pressure Calculation

Specific Volume Calculation

Molar Mass Calculation

Temperature Calculation

The use of the ideal gas equation calculator is very simple. Firstly, you need to select a calculation. In the ideal gas equation, there are 3 variables that you can calculate; Pressure, Temperature, and Specific Volume. You need to select one of them. After that, you need to enter the values inside the brackets. These values;

  • Pressure: This is the pressure value of the ideal gas. The unit of the pressure is Pa or psi.
  • Specific Volume: Specific volume of the ideal gas. The unit of the specific volume is m3/kg or in3/lbs
  • Molar Mass: Molar mass of the ideal gas. The unit of the molar mass is kg/mol or lbf/mol.
  • Temperature: The unit of the temperature of the ideal gas is K or R.
  • R: This is the universal gas constant which has the value of 8.31432 J⋅K−1⋅mol−1 or 1.985875279009 BTU⋅lbmol−1⋅°R−1

So, you need to enter the values according to these units. Also, you can use your own unit set but consistency in your units is very important.

And then, click on the ‘Calculate!’ button to see the result. If you want to make further calculations, click on the ‘Reset’ button and reenter the values.

What is Ideal Gas?

An ideal gas is an approximation where the intermolecular collisions are elastic and there are no attractive forces between the molecules. In the real world, there is no such gas that behaves like an ideal gas.

Byt with the increasing temperatures and decreasing pressures, normal gases will start to act like an ideal gas. So, we can use an ideal gas approximation and equation for these gases.

What is Ideal Gas Equation?

The ideal gas equation is very simple like this;

ideal gas equation

All the equations for the different variables of ideal gases are derived from this equation. In most of the engineering analyses, we can calculate this very easily. So, an ideal gas is a very useful assumption. In here;

  • P = Pressure
  • v = Specific Volume
  • N = Molar Mass
  • R = Universal Gas Constant
  • T = Temperature


The ideal gas equation calculator is very useful and easy to use. You can use it in your complex or simple engineering calculations.

Above all, Mechanicalland does not accept any responsibility for calculations made by users in calculators. A good engineer must check calculations again and again.

Also, You can find out much more calculators like this in Mechanicalland! Take a look at the other engineering calculators available in Mechanicalland!

Finally, do not forget to leave your comments and questions below about the ideal gas equation calculator.

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