Millimeters of mercury to Technical atmospheres converter

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

1 mmHg = 0.00135951 at
1 at ≈ 735.559135277 mmHg

Formula: at = mmHg × 0.00135951
mmHg ≈ at × 735.559135277

Definitions: 1 mmHg = 133.322387415 Pa; 1 at = 98066.5 Pa

The millimeter of mercury (mmHg) is the pressure at the base of a one-millimeter column of mercury. It is the unit of blood pressure in medicine, for example 120/80 mmHg, and is also used for some barometric and vacuum readings.

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.

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