Altitude Temperature Calculator
Free calculate air temperature at any altitude using the standard atmospheric lapse rate for aviation and meteorology.
Input Parameters
Standard: 15°C (59°F)
Standard: 6.5°C/km (3.57°F/1000ft)
Results
Enter altitude and sea level temperature
Temperature Lapse Rate
Formula
T = T₀ - (L × h)
Where:
- • T = temperature at altitude
- • T₀ = sea level temperature
- • L = lapse rate (°C/km)
- • h = altitude (km)
Common Values
- • Sea level (15°C): 15°C
- • 1000 m: ~8.5°C
- • 5000 m: ~-17.5°C
- • 10000 m: ~-50°C