About the Boyle's Law Calculator
Boyle's law P₁V₁ = P₂V₂ — pressure and volume at constant temperature.
Also known as: p1v1 = p2v2, pressure volume law, boyle law, isothermal compression.
How to use this calculator
- Enter solve for and the other fields.
- The result updates instantly as you type — press Calculate (or Enter) at any time.
- Review the breakdown shown under the main result.
- Use Copy result or Share to save the answer or send a link with your inputs.
Formula
P₁V₁ = P₂V₂ (temperature constant)
Worked example
Using the values pre-filled in the calculator above:
- Solve for: Final volume
- Initial pressure = 101.3 kPa
- Initial volume = 2 L
- Final pressure = 202.6 kPa
the calculator returns:
- Final volume: 1 L
- Initial pressure: 101.3 kPa
- Initial volume: 2 L
- Final pressure: 202.6 kPa