Air Density Calculator
Calculate the density of air from temperature, pressure and humidity, with density altitude, free online.
À propos de cette calculatrice
Moist air density ρ = (p_d ÷ (R_d·T)) + (p_v ÷ (R_v·T)), with the dry-air gas constant 287.058 and the vapour constant 461.495 J/kg·K. Vapour pressure comes from the Magnus formula. Density falls with heat, altitude and humidity — it matters for engines, drones, ballistics and aircraft performance.