Calculate dissolved gas concentration from partial pressure using Henry’s law.
Dissolved gas concentration is directly proportional to partial pressure, which is why doubling the pressure doubles the dissolved amount. Solubility also falls with rising temperature, so the constant is temperature specific. Henry’s law explains carbonated drinks fizzing when opened and nitrogen narcosis in diving, both consequences of pressure-dependent gas solubility.
Henry's Law
C = P ÷ K_H, so dissolved concentration is proportional to partial pressure
C = P ÷ K_H, so dissolved concentration is proportional to partial pressure Dissolved gas concentration is directly proportional to partial pressure, which is why doubling the pressure doubles the dissolved amount. Solubility also falls with rising temperature, so the constant is temperature specific.
Henry’s law explains carbonated drinks fizzing when opened and nitrogen narcosis in diving, both consequences of pressure-dependent gas solubility.
This calculator takes 4 inputs: Partial pressure of the gas, Henry’s law constant, Temperature, Volume of solvent. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.