Calculate gas law variables using the ideal gas equation (PV = nRT). Perfect for chemistry students and gas calculations.
Gas Law Calculator is a free online tool that calculates gas law variables using the ideal gas equation (PV = nRT). It allows you to input any three of the four variables (pressure, volume, moles, temperature) and calculates the missing one. Perfect for chemistry students, researchers, and anyone working with gas calculations.
The ideal gas law (PV = nRT) describes the relationship between pressure, volume, temperature, and the number of moles of an ideal gas. It's a fundamental equation in chemistry and physics.
The ideal gas law is most accurate at low pressures and high temperatures. At high pressures or low temperatures, real gases deviate from ideal behavior due to intermolecular forces and molecular volume.
The gas constant R = 8.314 J/(mol·K) is a fundamental physical constant that relates the energy scale to the temperature scale for an ideal gas.
No, pressure, volume, moles, and temperature must be positive values since they represent physical quantities that cannot be negative.
Yes, all calculations happen locally in your browser. Your data never leaves your device.
Yes, once loaded, the calculator works completely offline in your browser.