Ideal Gas Law Calculator
Solve formula for pressure, volume, temperature or amount of substance, with gas presets, mass, density, molecule count and gas-process modes.
If you have gauge pressure, add atmospheric pressure.
Ideal gas equation
P is absolute pressure, V volume, n moles, R the gas constant and T temperature in kelvins.
Model limits
The ideal gas law is an educational model. High pressure, low temperature, vapor systems and cylinders require real-gas data and engineering safety checks.
Frequently Asked Questions
Sources and References
- 2.1 Molecular Model of an Ideal GasOpenStax
- 9.2 Relating Pressure, Volume, Amount, and Temperature: The Ideal Gas LawOpenStax
- SI Units: TemperatureNIST
Calculations are based on the listed reference sources. Links open in a new tab.
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