›› Convert pound/square inch [gauge] to millimeter of mercury [0 C]


pound/square inch [gauge]
millimeter of mercury

The above form works if you are measuring differential pressure, such as the difference in psi between two points.

If you are measuring relative to vacuum and want to resolve the pressure relative to the atmosphere, then you should use the form below.

Note that psig can measure differential pressure in some applications and absolute pressure in others, so you need to know which one fits your calculation.

pound/square inch [gauge] (relative to atmosphere)
millimeter of mercury (relative to vacuum)

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pound/square inch [gauge]
pound/square inch [absolute]
to millimeter of mercury

›› More information from the unit converter

How many pound/square inch [gauge] in 1 millimeter of mercury? The answer is 0.019336777871316.
We assume you are converting between pound/square inch [gauge] and millimeter of mercury [0 C].
You can view more details on each measurement unit:
pound/square inch [gauge] or millimeter of mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00014503773800722 pound/square inch [gauge], or 0.0075006156130264 millimeter of mercury.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between pounds/square inch and millimeters of mercury.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of pound/square inch [gauge] to millimeter of mercury

1 pound/square inch [gauge] to millimeter of mercury = 51.71492 millimeter of mercury

2 pound/square inch [gauge] to millimeter of mercury = 103.42985 millimeter of mercury

3 pound/square inch [gauge] to millimeter of mercury = 155.14477 millimeter of mercury

4 pound/square inch [gauge] to millimeter of mercury = 206.8597 millimeter of mercury

5 pound/square inch [gauge] to millimeter of mercury = 258.57462 millimeter of mercury

6 pound/square inch [gauge] to millimeter of mercury = 310.28954 millimeter of mercury

7 pound/square inch [gauge] to millimeter of mercury = 362.00447 millimeter of mercury

8 pound/square inch [gauge] to millimeter of mercury = 413.71939 millimeter of mercury

9 pound/square inch [gauge] to millimeter of mercury = 465.43432 millimeter of mercury

10 pound/square inch [gauge] to millimeter of mercury = 517.14924 millimeter of mercury


›› Want other units?

You can do the reverse unit conversion from millimeter of mercury to pound/square inch [gauge], or enter any two units below:

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›› Common pressure conversions

pound/square inch [gauge] to yottabar
pound/square inch [gauge] to terabar
pound/square inch [gauge] to petabar
pound/square inch [gauge] to centibar
pound/square inch [gauge] to pound/square foot
pound/square inch [gauge] to micron of mercury
pound/square inch [gauge] to megapascal
pound/square inch [gauge] to picopascal
pound/square inch [gauge] to barye
pound/square inch [gauge] to exabar


›› Definition: Pound/square inch

Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. By contrast, psia measures pressure relative to a vacuum (such as that in space). At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.


›› Definition: Millimeter of mercury

The torr (symbol: Torr) or millimetre of mercury (mmHg) is a non-SI unit of pressure. It is the atmospheric pressure that supports a column of mercury 1 millimetre high. The unit is named after Evangelista Torricelli, Italian physicist and mathematician, for his discovery of the principle of the barometer in 1643.


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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!