Convert torr to Standard atmosphere
Please provide values below to convert torr [Torr] to Standard atmosphere [atm], or Convert Standard atmosphere to torr.
How to Convert Torr to Standard Atmosphere
1 Torr = 0.00131578946952874 atm
Example: convert 15 Torr to atm:
15 Torr = 15 × 0.00131578946952874 atm = 0.0197368420429312 atm
Torr to Standard Atmosphere Conversion Table
| torr | Standard atmosphere |
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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in fields like vacuum technology, physics, and medicine (e.g., blood pressure measurements), although it has largely been replaced by the pascal in most scientific contexts.
Standard Atmosphere
The standard atmosphere (atm) is a unit of pressure defined as 101,325 pascals, representing the average atmospheric pressure at sea level.
History/Origin
The standard atmosphere was established in the early 20th century to provide a consistent reference for pressure measurements, based on the average atmospheric pressure at sea level under standard conditions.
Current Use
The atm is commonly used in fields such as meteorology, aviation, and engineering to express pressure, especially in contexts involving gases and atmospheric conditions.