How to use the boyle's law calculator
Compute volume after a pressure change at constant temperature. Enter initial pressure, initial volume, final pressure in the fields above; the final volume is computed instantly and plotted on the chart so you can see how the answer changes.
Formula
Variables
- P1 — Initial pressure (kPa)
- V1 — Initial volume (L)
- P2 — Final pressure (kPa)
Worked example
With initial pressure = 100 kPa, initial volume = 5 L, final pressure = 250 kPa, the calculator gives final volume ≈ 2 L.
Frequently asked questions
What is the formula for the boyle's law calculation?
Final volume (L) = P1 × V1 / P2. Here P1 is initial pressure (kPa), V1 is initial volume (L), P2 is final pressure (kPa).
What inputs do I need for the boyle's law calculator?
You need initial pressure in kPa, initial volume in L, final pressure in kPa. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use this calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.