Boyle’s Law Calculator
Solve P1V1 = P2V2 for the missing value.
Leave the value you want to find as 0.
Pressure and volume trade off
Boyle’s law says that for a fixed amount of gas at constant temperature, pressure and volume are inversely related — halve the volume and the pressure doubles.
Know three of the four values and the fourth follows from P1V1 equals P2V2. Set the value you want to find to zero and the calculator solves it.
Handy and private
The calculation runs in your browser, so nothing you enter is uploaded.
Frequently Asked Questions
What is Boyle’s law?
At constant temperature, a gas’s pressure times its volume stays constant. Squeeze it and the pressure rises.
What does it solve?
Any one of the two pressures or two volumes. Leave the unknown as zero.
What units?
Any consistent units, as long as both pressures match and both volumes match.
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