Convert inch mercury (32°F) to torr
Please provide values below to convert inch mercury (32°F) [inHg] to torr [Torr], or Convert torr to inch mercury (32°F).
How to Convert Inch Mercury (32°f) to Torr
1 inHg = 25.400003696304 Torr
Example: convert 15 inHg to Torr:
15 inHg = 15 × 25.400003696304 Torr = 381.00005544456 Torr
Inch Mercury (32°f) to Torr Conversion Table
| inch mercury (32°F) | torr |
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Inch Mercury (32°f)
Inch of mercury at 32°F (inHg) is a unit of pressure measurement representing the height of a mercury column in inches, used primarily in meteorology and aviation.
History/Origin
The inch of mercury originated from barometric pressure measurements using a mercury barometer, with its use dating back to the 18th century. It became a standard unit in weather reporting and altitude measurement.
Current Use
Today, inHg is primarily used in meteorology to report atmospheric pressure, especially in the United States, and in aviation for altitude and pressure readings.
Torr
The torr is a unit of pressure defined as 1 millimeter of mercury (mmHg) at standard gravity and temperature, approximately equal to 133.322 pascals.
History/Origin
The torr was introduced by Evangelista Torricelli in 1644, based on his experiments with mercury barometers, as a unit to measure atmospheric pressure. It was historically used in meteorology and physics before the adoption of the pascal.
Current Use
Today, the torr is primarily used in fields like vacuum technology, physics, and medicine (e.g., blood pressure measurements), although it has largely been replaced by the pascal in most scientific contexts.