About the Charles's Law Calculator
Charles's law V₁/T₁ = V₂/T₂ — volume and temperature at constant pressure.
Also known as: v1/t1 = v2/t2, volume temperature law, charles law, isobaric expansion.
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
V₁ / T₁ = V₂ / T₂ (temperatures in kelvin)
Worked example
Using the values pre-filled in the calculator above:
- Solve for: Final volume
- Initial volume = 2 L
- Initial temperature = 273.15 K
- Final temperature = 300 K
the calculator returns:
- Final volume: 2.1966 L
- Initial volume: 2 L
- Initial temperature: 273.15 K
- Final temperature: 300 K