๐ฌ Science
Ideal Gas Law Calculator
The ideal gas law, PV equals nRT, links four quantities so that specifying three determines the fourth. Using kPa with litres and kelvin makes the gas constant exactly 8.314, which avoids the unit errors that plague this calculation.
How it works
Solve for
Pressure
Volume
Amount of gas
Temperature
Pressure
Volume
Amount of gas
Temperature
Temperature
Molar volume
Gas constant used
Frequently asked questions
How do I use the Ideal Gas Law Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.