How many water column [millimeter] in 1 pound/square inch [gauge]?
The answer is 703.069578296.
We assume you are converting between water column [millimeter] and pound/square inch [gauge].
You can view more details on each measurement unit:
water column [millimeter] or pound/square inch [gauge]
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.101971621298 water column [millimeter], or 0.000145037738007 pound/square inch [gauge].
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between water column and pounds/square inch.
Type in your own numbers in the form to convert the units!
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.
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!
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