Henry's Law Calculator for Solutions | Calculate Gas Solubility in Liquid
Calculate the concentration of a gas dissolved in a liquid using Henry’s law. Enter the gas partial pressure and the appropriate Henry’s law constant to determine the dissolved concentration.
About Henry's Law Calculator
Some gases dissolve readily in liquids, while others barely stay dissolved at all. Henry’s law gives us a useful way to describe this behavior by connecting the concentration of a dissolved gas with its partial pressure above the liquid.
A Henry’s Law Calculator makes this relationship easier to work with. In one common form, the equation is written as C = kH × P, where C is the dissolved gas concentration, kH is Henry’s law constant, and P is the gas partial pressure. However, Henry’s law constants are defined in more than one convention, so the exact equation depends on how the constant is reported.
This calculator is useful for physical chemistry, environmental science, laboratory work, and gas-liquid equilibrium problems. It can help estimate dissolved gas levels or check calculations involving pressure changes.
A good habit is to check the units and definition of the Henry’s constant before calculating. Two constants with different conventions can look similar numerically but require different equations. Temperature also matters because Henry’s constant generally changes with temperature.