Technical atmospheres to Millimeters of mercury converter

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

1 at ≈ 735.559135277 mmHg
1 mmHg = 0.00135951 at

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

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

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