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millimeters of mercury to hectopascals conversion

millimeters of mercury to hectopascals conversion table

millimeters of mercury (mmHg)hectopascals (hPa)
00
11.33322
22.66644
33.99966
45.33288
56.6661
67.99932
79.33254
810.66576
911.99898
1013.3322
2026.6644
3039.9966
4053.3288
5066.661
6079.9932
7093.3254
80106.6576
90119.9898
100133.322
10001333.22

How to convert millimeters of mercury to hectopascals?

To convert millimeters of mercury (mmHg) to hectopascals (hPa), you'll need to use the following conversion factors:

  1. Standard atmospheric pressure at sea level is 760 mmHg, which is equal to 1013.25 hPa.
  2. This gives us the conversion factor: 1 mmHg = 1013.25 / 760 ≈ 1.33322 hPa.

So, to convert 1 mmHg to hPa: 1 mmHg×1013.25 hPa760 mmHg≈1.33322 hPa1 \text{ mmHg} \times \frac{1013.25 \text{ hPa}}{760 \text{ mmHg}} \approx 1.33322 \text{ hPa}

Therefore, 1 mmHg ≈ 1.33322 hPa.

Real-World Examples Using mmHg:

  1. Blood Pressure Measurement:

    • Normal Blood Pressure: Systolic pressure of 120 mmHg and diastolic pressure of 80 mmHg are often considered normal for adults.
    • Converted to hPa: 120 mmHg×1.33322≈160 hPa120 \text{ mmHg} \times 1.33322 \approx 160 \text{ hPa} 80 mmHg×1.33322≈107 hPa80 \text{ mmHg} \times 1.33322 \approx 107 \text{ hPa}

  2. Meteorological Applications:

    • Tropical Storm: The central pressure of a tropical storm might be around 980 mmHg.
    • Converted to hPa: 980 mmHg×1.33322≈1306 hPa980 \text{ mmHg} \times 1.33322 \approx 1306 \text{ hPa}

  3. Hyperbaric Oxygen Therapy:

    • Chamber Pressure: A hyperbaric chamber might be set to 1500 mmHg.
    • Converted to hPa: 1500 mmHg×1.33322≈2000 hPa1500 \text{ mmHg} \times 1.33322 \approx 2000 \text{ hPa}

  4. Pressure in Aviation:

    • Cabin Pressure: At cruising altitude, the cabin pressure in an aircraft is often maintained at around 565 mmHg.
    • Converted to hPa: 565 mmHg×1.33322≈752 hPa565 \text{ mmHg} \times 1.33322 \approx 752 \text{ hPa}

In everyday life, mmHg is most commonly encountered in medical contexts (like blood pressure readings) and meteorological reports (barometric pressure). Converting to hPa allows for a better understanding or comparison with other scientific data that use the metric system.

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 hectopascals to other unit conversions.

What is millimeters of mercury?

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:

  • A blood pressure reading of 120/80 mmHg means that the systolic pressure is 120 mmHg and the diastolic pressure is 80 mmHg.

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.

What is a Hectopascal?

The hectopascal (hPa) is a 100 pascals (Pa). This is also known as millibar. The pascal is a SI unit that measures pressure. Pascal unit is named after Blaise Pascal and it replaced the previously used units for pressure N/m2N/m^2 in SI unit system. Following are equal representation of 1 Hectopascal in other units.

1 hPa=1 millibar=100∗Nm2=100∗kgm∗s2=100∗Jm31\ hPa = 1\ millibar = \frac{100 *N}{m^2} = \frac{100 *kg}{m*s^2} = \frac{100 *J}{m^3}

Where
N−NewtonsN - Newtons
kg−Kilogramskg - Kilograms
m−Metersm - Meters
s−Secondss - Seconds
J−JulesJ - Jules

Wikipedia page link for Pascal

Complete millimeters of mercury conversion table

Enter # of millimeters of mercury
Convert 1 mmHg to other unitsResult
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

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