Ideal Gas Law Calculator (PV = nRT)
Finds any one of pressure, volume, moles and temperature from the other three. Choose what to find; the field for that value is ignored.
Answer
—
Share sends a link that reopens these numbers. Copy details pastes the full breakdown as a list.
Pressure —
Volume —
Amount — mol
Temperature —
Reading this —
The formula
P × V = n × R × T
R is 8.314 J/(mol·K), pressure is in pascals, volume in cubic metres and temperature in kelvin. The units are converted for you.
What to watch out for
Temperature must be absolute. Doubling a temperature means doubling it in kelvin, not in degrees Celsius.
Frequently Asked Questions
What is the pressure of 1 mol in 24.5 L at 25 °C?
0.9986 atm = 101.2 kPa.
What is R in other units?
8.314 J/(mol·K), which is also 0.08206 L·atm/(mol·K).