Skip to content
standard atmosphere

File:Wohnzimmerbarometer.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ177974· pop 66· linked from 486 articles

standard atmosphere

Sign in to save

Also known as atm, atmosphere

unit of pressure defined as 101325 Pa

AI overview

Standard atmosphere is a reference unit of air pressure equal to 101,325 pascals, which represents the average atmospheric pressure at sea level on Earth. Scientists and engineers use this standardized measurement as a baseline for comparing pressures and making calculations in fields like aviation, weather, and physics.

AI-generated from the Wikipedia summary — may contain errors.

~2 min read

Encyclopedic overview

Aneroid barometer for household use from c. 1925 The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa. It is sometimes used as a reference pressure or standard pressure. It is approximately equal to Earth's average atmospheric pressure at sea level.

History

Excerpted from Wikipedia’s “standard atmosphere” article, available under the CC BY-SA 4.0 licence.