Convert Millimeters of Mercury (mmHg) to Atmospheres (atm)
Converting millimeters of mercury (mmHg) to atmospheres (atm) is crucial in various fields such as meteorology and medicine. The conversion factor is straightforward: 1 mmHg equals 0.00131579 atm. Whether you're measuring blood pressure or atmospheric pressure, this conversion can help you understand the pressure in a more familiar unit.
Conversion Formula
Reverse: mmHg = atm × 760.002
Conversion Examples
Millimeter of Mercury to Atmosphere Table
| Millimeter of Mercury (mmHg) | Atmosphere (atm) | Fraction |
|---|---|---|
| 100 | 0.131579 | 1/8 |
| 200 | 0.263157 | 17/64 |
| 300 | 0.394736 | 25/64 |
| 400 | 0.526314 | 17/32 |
| 500 | 0.657893 | 21/32 |
| 600 | 0.789472 | 51/64 |
| 700 | 0.92105 | 59/64 |
| 800 | 1.052629 | 1 3/64 |
| 900 | 1.184207 | 1 3/16 |
| 1,000 | 1.315786 | 1 5/16 |
| 1,100 | 1.447364 | 1 29/64 |
| 1,200 | 1.578943 | 1 37/64 |
| 1,300 | 1.710522 | 1 45/64 |
| 1,400 | 1.8421 | 1 27/32 |
| 1,500 | 1.973679 | 1 31/32 |
| 1,600 | 2.105257 | 2 7/64 |
| 1,700 | 2.236836 | 2 15/64 |
| 1,800 | 2.368415 | 2 3/8 |
| 1,900 | 2.499993 | 2 1/2 |
| 2,000 | 2.631572 | 2 5/8 |
Unit Definitions
What is a Millimeter of Mercury (mmHg)?
The millimeter of mercury (mmHg) is a unit of pressure defined as the pressure exerted by a column of mercury one millimeter high.
History
The use of mercury in pressure measurement dates back to the 17th century when Evangelista Torricelli invented the barometer. This unit became widely adopted for measuring blood pressure and atmospheric pressure.
Current Use
Today, mmHg is commonly used in medical settings to measure blood pressure and in meteorology to report atmospheric pressure.
What is a Atmosphere (atm)?
An atmosphere (atm) is a unit of pressure defined as being precisely equal to 101325 pascals or 1013.25 hPa.
History
The atmosphere as a unit was established in the early 20th century and was based on the average atmospheric pressure at sea level. It is a convenient unit for expressing various pressures encountered in science and engineering.
Current Use
Currently, atm is widely used in scientific research, aviation, and various engineering fields to express pressure.