Convert Pascals (Pa) to Millimeters of Mercury (mmHg)
Enter a value below to convert Pascals (Pa) to Millimeters of Mercury (mmHg).
Conversion:
1 Pascals (Pa) = 0.0075006375542 Millimeters of Mercury (mmHg)
How to Convert Pascals (Pa) to Millimeters of Mercury (mmHg)
1 pa = 0.0075006375542 mmhg
1 mmhg = 133.322 pa
Example: convert 15 Pascals (Pa) to Millimeters of Mercury (mmHg):
25 pa = 0.18751593885 mmhg
Pascals (Pa) to Millimeters of Mercury (mmHg) Conversion Table
| Pascals (Pa) | Millimeters of Mercury (mmHg) |
|---|---|
| 0.01 pa | 0.000075006375542 mmhg |
| 0.1 pa | 0.00075006375542 mmhg |
| 1 pa | 0.0075006375542 mmhg |
| 2 pa | 0.015001275108 mmhg |
| 3 pa | 0.022501912663 mmhg |
| 5 pa | 0.037503187771 mmhg |
| 10 pa | 0.075006375542 mmhg |
| 20 pa | 0.15001275108 mmhg |
| 50 pa | 0.37503187771 mmhg |
| 100 pa | 0.75006375542 mmhg |
| 1000 pa | 7.5006375542 mmhg |
Pascals (Pa)
Definition
A pascal (Pa) is the SI unit of pressure, defined as one newton per square meter (1 Pa = 1 N/m²). It measures the force applied perpendicular to a surface per unit area.
History
The pascal was named after Blaise Pascal, the French mathematician and physicist who made pioneering contributions to fluid mechanics and pressure studies in the 17th century. It was adopted as the SI unit of pressure in 1971.
Current use
Pascals are the standard pressure unit in science and engineering worldwide. Atmospheric pressure, material stress, and sound pressure levels are all measured in pascals or their multiples.
Millimeters of Mercury (mmHg)
Definition
Millimeters of mercury (mmHg) is a unit of pressure based on the height of a mercury column, equal to approximately 133.322 pascals. It is nearly identical to the torr.
History
Millimeters of mercury originated from Torricelli's mercury barometer in the 17th century. Measuring pressure by mercury column height became the standard method for centuries and remains in medical practice.
Current use
mmHg is the standard unit for measuring blood pressure worldwide (e.g., 120/80 mmHg). It is also used in measuring intraocular pressure, cerebrospinal fluid pressure, and in some vacuum applications.