Air Pressure at Altitude Calculator
Free calculate atmospheric pressure at any altitude using the barometric formula for aviation and meteorology.
Input Parameters
Standard: 101325 Pa
Standard: 15°C
Results
Enter altitude to calculate pressure
Barometric Formula
Formula
P = P₀ × (1 - L×h/T₀)^(g×M/(R×L))
Where:
- • P = pressure at altitude
- • P₀ = sea level pressure
- • h = altitude
- • L = temperature lapse rate
Common Altitudes
- • Sea level: 1013.25 hPa
- • 1000 m: ~900 hPa
- • 5000 m: ~540 hPa
- • 10000 m: ~265 hPa