Boyle's Law describes how a gas's pressure and volume are inversely related at constant temperature — squeeze it into a smaller space and the pressure rises proportionally.
Boyle's Law describes how a gas's pressure and volume are inversely related at constant temperature — squeeze it into a smaller space and the pressure rises proportionally. This calculator solves for any one of the four values from the other three.
A gas at 2 atm occupies 5 L. If compressed to 2 L, what's the new pressure? Leaving P2 blank: P2 = (2×5)/2 = 5 atm.
At constant temperature, the pressure and volume of a gas are inversely proportional: initial pressure times initial volume equals final pressure times final volume.
Given any three of the four values (initial pressure, initial volume, final pressure, final volume), it solves for the missing one.
Compressing a gas-filled syringe with your finger over the opening — as volume decreases, pressure inside increases, which is Boyle's Law in action.