basic

Ideal Gas Law Calculator

Pressure, volume, temperature, or moles from the other three.

Solve the ideal gas law PV = nRT for the missing variable given the other three. R defaults to 8.314 J/(mol·K).

Daniel Oh By Daniel Oh
Reviewed by Dr. Helena Ortiz
Published Last reviewed 1 min read

Inputs

Pa
m³
mol
K

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

P · V = n · R · T. Returns whichever input you leave blank.

In depth

Solve the ideal gas law PV = nRT for the missing variable given the other three. R defaults to 8.314 J/(mol·K).