Ideal Gas Law Calculator

Calculate pressure, volume, temperature, or moles using the ideal gas law PV = nRT.

Solve For

PV = nRT

R = 0.08206 L*atm/(mol*K)

Volume (V)

Moles (n)

Temperature (T)

Pressure

1.0007 atm

Unit Conversions

atm1.0007

kPa101.3914

bar1.0139

mmHg760.4984

psi14.7056

Input Values (in SI units)

V22.4000 L

n1.0000 mol

T273.15 K

Standard Conditions Reference

STP (Standard Temperature and Pressure)

T = 273.15 K (0 C), P = 1 atm

1 mol gas = 22.4 L

Room Conditions

T = 298.15 K (25 C), P = 1 atm

1 mol gas = 24.5 L