🌡️ Ideal Gases
PV = nRT — Solve for any variable with your preferred units
P · V = n · R · T

Leave the variable you want to calculate empty. Adjust each variable's units independently.

P Pressure
1 atm = 101.325 kPa = 760 mmHg
V Volume
STP: 1 mol occupies 22.414 L
n Amount
1 mol = 6.022 × 10²³ particles
T Temperature
STP: 273.15 K (0 °C)
R = 8.31446 L·kPa/(mol·K) = 0.082057 L·atm/(mol·K) — Units are converted automatically