basic

Combined Gas Law Calculator

Solve P₁V₁/T₁ = P₂V₂/T₂ for any one variable.

Find the missing pressure, volume, or temperature using the combined gas law for a fixed amount of gas.

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

Inputs

Pa
L
K
Pa
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

P₁ · V₁ / T₁ = P₂ · V₂ / T₂ (T in kelvin).

In depth

Find the missing pressure, volume, or temperature using the combined gas law for a fixed amount of gas.