Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles or temperature. The result updates as you type, with the working underneath so you can check it.
Your details
Result
Pressure
0.999999 atm
- Assumes an ideal gas. Use kelvin (°C + 273.15). Real gases deviate at high pressure and low temperature.
Good to know: PV = nRT, R = 0.082057 L·atm/(mol·K)
Please note: For study and planning. Check calculations independently before using results with chemicals, electricity, pressure or machinery, and follow safety data sheets, manufacturer instructions and local regulations.
About this tool
Formula
PV = nRT, R = 0.082057 L·atm/(mol·K)
Questions people ask
What are the ideal gas law units?
This calculator uses atmospheres, litres, moles and kelvin. One mole of an ideal gas at 273.15 K and 1 atm occupies about 22.414 L.
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How we calculate this
We use the standard published formula or definition for this calculation, and we show the working so you can check it.
Spotted a mistake? Tell us and we'll check it. How we check our calculators