Technical atmospheres to Atmospheres converter

To convert technical atmospheres to atmospheres, enter the value in the first field. The result in atmospheres is calculated automatically using the exact conversion factor.

1 at ≈ 0.967841105354 atm
1 atm ≈ 1.0332274528 at

Formula: atm ≈ at × 0.967841105354
at ≈ atm × 1.0332274528

Definitions: 1 at = 98066.5 Pa; 1 atm = 101325 Pa

The technical atmosphere (at) equals one kilogram-force per square centimeter, exactly 98,066.5 pascals. It is found on older gauges and specifications, especially in the former Soviet Union and older European equipment, and is now largely replaced by the bar.

The standard atmosphere (atm) is exactly 101,325 pascals, the average air pressure at sea level. It is a reference pressure in chemistry and physics and is used to express high pressures as multiples of atmospheric pressure.

See the conversion table with commonly used values, handy for quick reference or study.