Convert micropascal to torr
Please provide values below to convert micropascal [µPa] to torr [Torr], or Convert torr to micropascal.
How to Convert Micropascal to Torr
1 µPa = 7.5006168507298e-09 Torr
Example: convert 15 µPa to Torr:
15 µPa = 15 × 7.5006168507298e-09 Torr = 1.12509252760947e-07 Torr
Micropascal to Torr Conversion Table
| micropascal | torr |
|---|
Micropascal
The micropascal (µPa) is a unit of pressure equal to one millionth of a pascal, used to measure very low pressures.
History/Origin
The micropascal was introduced as part of the SI unit system to quantify extremely small pressure values, especially in scientific and engineering contexts, though it is rarely used in practical applications.
Current Use
The micropascal is primarily used in scientific research, acoustics, and environmental monitoring where precise measurement of very low pressures is required.
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in fields like vacuum technology, physics, and medicine (e.g., blood pressure measurements), although it has largely been replaced by the pascal in most scientific contexts.