| millimeters of mercury (mmHg) | Inches of mercury (inHg) |
|---|---|
| 0 | 0 |
| 1 | 0.03936996069858 |
| 2 | 0.07873992139716 |
| 3 | 0.1181098820957 |
| 4 | 0.1574798427943 |
| 5 | 0.1968498034929 |
| 6 | 0.2362197641915 |
| 7 | 0.2755897248901 |
| 8 | 0.3149596855887 |
| 9 | 0.3543296462872 |
| 10 | 0.3936996069858 |
| 20 | 0.7873992139716 |
| 30 | 1.1810988209574 |
| 40 | 1.5747984279433 |
| 50 | 1.9684980349291 |
| 60 | 2.3621976419149 |
| 70 | 2.7558972489007 |
| 80 | 3.1495968558865 |
| 90 | 3.5432964628723 |
| 100 | 3.9369960698582 |
| 1000 | 39.369960698582 |
To convert millimeters of mercury (mmHg) to inches of mercury (inHg), you can use the following conversion factor:
1 mmHg = 0.0393701 inHg.
So, for 1 mmHg, the conversion to inches of mercury would be:
1 mmHg * 0.0393701 inHg/mmHg = 0.0393701 inHg.
Blood Pressure Measurement:
Barometric Pressure:
Pressure Inside a Vacuum Chamber:
Tire Pressure (though not commonly measured in mmHg):
Venous Blood Pressure:
These conversions illustrate how mmHg is used in various contexts, from medical to atmospheric and engineering applications.
See below section for step by step unit conversion with formulas and explanations. Please refer to the table below for a list of all the Inches of mercury to other unit conversions.
Millimeters of mercury (mmHg) is a unit of measurement used to express pressure, specifically atmospheric pressure. It's commonly used in medicine and physiology to measure blood pressure.
In essence, mmHg measures the pressure exerted by a column of mercury, which is a dense liquid metal, against a surface. The "millimeter" refers to the height of the mercury column, while the "mercury" part comes from the use of mercury as the liquid in the measuring device.
A standard barometer (an instrument that measures atmospheric pressure) uses a column of mercury to measure pressure. When the air pressure is high, the mercury level rises, and when it's low, the level drops. This allows for a direct measurement of the pressure in terms of millimeters of mercury.
In medical contexts, blood pressure readings are expressed in mmHg (systolic pressure) over mmHg (diastolic pressure). For example:
The use of mmHg as a unit of measurement has been largely replaced by other units, such as kilopascals (kPa), in scientific and technical applications. However, it remains a widely recognized and used unit in medical and physiological contexts.
Inches of mercury (inHg) is a unit of measurement used to express atmospheric pressure or the height of a column of mercury that would be exerting a given pressure.
In other words, it's a measure of how much pressure is being exerted on the atmosphere by gravity. The unit was originally defined as the pressure exerted by a column of mercury 1 inch (2.54 cm) high at sea level and at standard temperature (32°F/0°C).
To put it simply:
Inches of mercury are commonly used in weather forecasting, particularly for measuring the pressure of low-pressure systems such as hurricanes and typhoons. Weather forecasters often report barometric pressure using inches of mercury, especially when discussing tropical cyclones.
So, to summarize: inches of mercury is a unit of measurement that expresses atmospheric pressure or the height of a column of mercury exerting a given pressure!
| Convert 1 mmHg to other units | Result |
|---|---|
| millimeters of mercury to pascals (mmHg to Pa) | 133.322 |
| millimeters of mercury to kilopascals (mmHg to kPa) | 0.133322 |
| millimeters of mercury to megapascals (mmHg to MPa) | 0.000133322 |
| millimeters of mercury to hectopascals (mmHg to hPa) | 1.33322 |
| millimeters of mercury to bar (mmHg to bar) | 0.00133322 |
| millimeters of mercury to torr (mmHg to torr) | 0.9999972366149 |
| millimeters of mercury to meters of water @ 4°C (mmHg to mH2O) | 0.01359506049466 |
| millimeters of mercury to pounds per square inch (mmHg to psi) | 0.01933671367695 |
| millimeters of mercury to kilopound per square inch (mmHg to ksi) | 0.00001933671367695 |
| millimeters of mercury to Inches of mercury (mmHg to inHg) | 0.03936996069858 |