Ideal Gas Law Calculator

Calculate the unknown variable in the equation PV = nRT when three of the variables are known.

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The ideal gas law describes the relationship between pressure, volume, temperature, and the number of moles of an ideal gas. The equation is:

PV = nRT

Where:

  • P = pressure
  • V = volume
  • n = number of moles
  • R = universal gas constant
  • T = temperature

To find an unknown variable, rearrange the equation:

  • Pressure: P = nRT / V
  • Volume: V = nRT / P
  • Moles: n = PV / RT
  • Temperature: T = PV / nR

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