How pressure and volume move together
Boyle’s Law describes the relationship between pressure and volume of a gas at constant temperature. As one goes up, the other comes down proportionally.
Core idea
For a fixed amount of gas, the product of pressure and volume stays constant. That makes Boyle’s Law one of the most useful quick-reference relationships in diving and chamber work.
Use it for
Quick checks on changing gas volumes, estimating expansion or compression, and teaching or revising the basic gas law logic behind diving calculations.
Solve for the missing value
Choose the version you need and enter the known values. Press Enter inside any card to calculate.
Calculate Final Volume (V₂)
Calculate Final Pressure (P₂)
Calculate Initial Volume (V₁)
Calculate Initial Pressure (P₁)
Quick supporting conversions
Use these alongside the calculator when you need fast pressure, depth, and volume conversions.
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