›› Convert pound/square inch to newton/square millimetre

pound per square inch
newtons/(sq. millimeter)

The above form works if you are measuring differential pressure, such as the difference in psi between two points. It also gives the correct answer for absolute pressure, assuming you are measuring psia, which is the pressure relative to absolute zero vacuum.

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

pound per square inch (relative to atmosphere)
newtons/(sq. millimeter) (relative to vacuum)

Did you mean to convert pound/square inch
pound/square inch [gauge]
pound/square inch [absolute]
to newtons/(sq. millimeter)


›› More information from the unit converter

How many pound per square inch in 1 newtons/(sq. millimeter)? The answer is 145.037738007.
We assume you are converting between pound/square inch and newton/square millimetre.
You can view more details on each measurement unit:
pound per square inch or newtons/(sq. millimeter)
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.000145037738007 pound per square inch, or 1.0E-6 newtons/(sq. millimeter).
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between pounds/square inch and newtons/square millimeter.
Type in your own numbers in the form to convert the units!


›› Want other units?

You can do the reverse unit conversion from newtons/(sq. millimeter) to pound per square inch, or enter any two units below:

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›› Definition: Pound/square inch

The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/inē or lbf/inē) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.


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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!

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