Ideal Gas Law Calculator
🔥 Heat & thermodynamics. Use the Ideal gas law formula to find pressure, volume, moles, temperature: pick the value you want, type the others, and the answer updates as you go.
Pressure101330 Pa
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Pressure | Pa |
| Volume | m³ |
| Moles | mol |
| Temperature | K |
Worked example
Find the pressure when Volume = 0.0224 m³, Moles = 1 mol, Temperature = 273 K.
Using pV = nRT: Pressure = 101330 Pa.
Frequently asked questions
What is the formula for Ideal gas law?
pV = nRT.
What do the letters stand for, and what units are used?
Pressure in Pa, Volume in m³, Moles in mol, Temperature in K.
How do you calculate pressure?
Put the values into pV = nRT. For example, with Volume = 0.0224 m³, Moles = 1 mol, Temperature = 273 K, pressure = 101330 Pa.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (pressure, volume, moles, temperature) and fill in the others: it rearranges the formula for you.
