Atmospheric Calculator

Calculate ISO 2533 Standard Atmosphere properties and ISO 5878 wind distributions — from −2,000 m to 80,000 m.

The International Standard Atmosphere (ISA) defines a reference vertical profile of temperature, pressure, density, and derived properties — used in aerospace engineering, meteorology, and scientific research worldwide.

ISO 2533
H (geopotential)
80 km60 km40 km19 km-2 km
m

Geopotential Altitude (H)

0 m (0 ft)
Temperature288.1 K
15.0 °C
Pressure1013.25 mbar
Density1.2250 kg/m³
Speed of Sound340.3 m/s
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