Ideal Gas Law Calculator

Calculate any variable in the ideal gas law equation (PV = nRT) by providing the other three. Real-time updates with support for multiple units.

Pressure (P)

Volume (V)

Moles (n)

Using gas constant R = 0.0821 L·atm/(mol·K). Temperature is fixed at 273.15 K (0°C).

About the Ideal Gas Law

The ideal gas law is a fundamental equation in chemistry and physics that describes the behavior of an ideal gas. It combines several gas laws (Boyle's, Charles's, Avogadro's, and Gay-Lussac's) into a single relationship expressed as:

PV = nRT

Where:

P = Pressure of the gas
V = Volume of the gas
n = Number of moles of gas
R = Ideal gas constant
T = Absolute temperature of the gas (fixed at 273.15K)

This calculator allows you to solve for any one variable by providing the other three. It automatically handles unit conversions and provides results in real-time. The ideal gas law is applicable to gases at low pressures and high temperatures where intermolecular forces are negligible.

Frequently Asked Questions

Why is temperature fixed in this calculator?

What is the ideal gas constant (R)?

How do I use this calculator?

What units does this calculator support?

Practical Applications

The ideal gas law has numerous applications in science and engineering:

Predicting the behavior of gases in chemical reactions
Calculating the density of gases at standard temperature
Designing and operating gas storage systems
Understanding atmospheric phenomena and weather patterns
Designing HVAC systems for standard conditions
Calibrating scientific instruments at reference temperature