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Inches of mercury to megapascals conversion

Inches of mercury to megapascals conversion table

Inches of mercury (inHg)	megapascals (MPa)
0	0
1	0.003386388953261
2	0.006772777906522
3	0.01015916685978
4	0.01354555581304
5	0.01693194476631
6	0.02031833371957
7	0.02370472267283
8	0.02709111162609
9	0.03047750057935
10	0.03386388953261
20	0.06772777906522
30	0.1015916685978
40	0.1354555581304
50	0.1693194476631
60	0.2031833371957
70	0.2370472267283
80	0.2709111162609
90	0.3047750057935
100	0.3386388953261
1000	3.3863889532611

How to convert inches of mercury to megapascals?

Sure! To convert inches of mercury (inHg) to megapascals (MPa), you can use the following conversion factor:

1 inHg ≈ 0.00338639 MPa

Here is the step-by-step process for converting 1 inch of mercury to megapascals:

Use the conversion factor.
Multiply the given value in inches of mercury by the conversion factor to get the value in megapascals.

So for 1 inHg: $1 \text{ inHg} \times 0.00338639 \text{ MPa/inHg} = 0.00338639 \text{ MPa}$

Therefore, 1 inHg is approximately 0.00338639 megapascals.

Real-World Examples of Inches of Mercury:

Atmospheric Pressure:
- Standard atmospheric pressure at sea level is about 29.92 inHg. This is equivalent to approximately 101.325 kPa or 101325 Pa.
Meteorology:
- Weather stations often report barometric pressure in inches of mercury.
- Low-pressure systems, which can lead to storms, often have barometric pressures around 28-29 inHg, whereas high-pressure systems might be around 30-31 inHg.
Vacuum Measurements:
- In vacuum engineering, pressures less than the atmospheric pressure are often measured in inches of mercury below atmospheric pressure (inHg below ambient). For example, a vacuum level of 25 inHg vacuum means the pressure in the vacuum chamber is approximately atmospheric pressure minus 25 inHg.
Aircraft Altimeters:
- Pilots use aircraft altimeters calibrated in inches of mercury to measure altitude. Pilots must adjust their altimeters based on the local barometric pressure to ensure accurate readings. For instance, if the local barometric pressure is 30.00 inHg, the altimeter setting would be adjusted to 30.00.
Hydraulic and Pneumatic Systems:
- In some hydraulic and pneumatic systems, pressure gauges are calibrated in inches of mercury. For instance, a gauge might indicate a vacuum pressure of 10 inHg in a hydraulic brake system.

These examples show how inches of mercury is a widely used unit in various fields for different pressure measurements.

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 megapascals to other unit conversions.

What is inches of mercury?

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:

1 inch of mercury is equivalent to about 25.4 millimeters of mercury
It's also equivalent to approximately 3386 pascals or 49.9 pounds per square inch

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!

What is a Megapascal?

The megapascal (MPa) is a 1,000,000 pascals (Pa). 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 $N/m^2$ in SI unit system. Following are equal representation of 1 Megapascal in other units.

1\ MPa = \frac{1000 * 1000 *N}{m^2} = \frac{1000 * 1000 *kg}{m*s^2} = \frac{1000 * 1000 *J}{m^3}

Where
$N - Newtons$
$kg - Kilograms$
$m - Meters$
$s - Seconds$
$J - Jules$

Wikipedia page link for Pascal

Complete Inches of mercury conversion table

Enter # of Inches of mercury

Convert 1 inHg to other units	Result
Inches of mercury to pascals (inHg to Pa)	3386.3889532611
Inches of mercury to kilopascals (inHg to kPa)	3.3863889532611
Inches of mercury to megapascals (inHg to MPa)	0.003386388953261
Inches of mercury to hectopascals (inHg to hPa)	33.863889532611
Inches of mercury to bar (inHg to bar)	0.03386388953261
Inches of mercury to torr (inHg to torr)	25.400005965738
Inches of mercury to meters of water @ 4°C (inHg to mH2O)	0.345315571909
Inches of mercury to millimeters of mercury (inHg to mmHg)	25.400076155931
Inches of mercury to pounds per square inch (inHg to psi)	0.491154
Inches of mercury to kilopound per square inch (inHg to ksi)	0.000491154

Inches of mercury to megapascals conversion