Ideal Gas Law

Solve PV = nRT and explore Boyle's, Charles's, and Gay-Lussac's laws with a piston diagram

Gas law

Solve for

Volume (V)

Moles (n)

Temperature (T)

Pressure unit

Volume unit

Temperature unit

PV = nRT → P = 1.0007

Solve for: P

1.0007

atm

About this calculator

Solve ideal gas law problems (PV = nRT) and related gas laws including Boyle, Charles, Gay-Lussac, and the combined gas law. Enter known variables to find the unknown.

Common examples

1 mol at 273.15 K, 1 atm = 22.414 L
Boyle: P1V1 = P2V2 at constant T
Charles: V1/T1 = V2/T2 at constant P
Gay-Lussac: P1/T1 = P2/T2 at constant V
2 mol at 300 K, 1 atm = 49.24 L