Convert newton/square millimetre to pound/square inch [gauge]


N/MM SQ
LBS/IN SQ

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.

N/MM SQ (relative to vacuum)
LBS/IN SQ (relative to atmosphere)



Did you mean to convert newton/square megametre
newton/square millimetre
 to pound/square inch
pound/square inch [gauge]
pound/square inch [absolute]

More information from the unit converter

How many N/MM SQ in 1 LBS/IN SQ? The answer is 0.00689475728. We assume you are converting between newton/square millimetre and pound/square inch [gauge]. You can view more details on each measurement unit: N/MM SQ or LBS/IN SQ The SI derived unit for pressure is the pascal. 1 pascal is equal to 1.0E-6 N/MM SQ, or 0.00014503773800722 LBS/IN SQ. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between newtons/square millimeter and pounds/square inch. Type in your own numbers in the form to convert the units!



Quick conversion chart of N/MM SQ to LBS/IN SQ

1 N/MM SQ to LBS/IN SQ = 145.03774 LBS/IN SQ

2 N/MM SQ to LBS/IN SQ = 290.07548 LBS/IN SQ

3 N/MM SQ to LBS/IN SQ = 435.11321 LBS/IN SQ

4 N/MM SQ to LBS/IN SQ = 580.15095 LBS/IN SQ

5 N/MM SQ to LBS/IN SQ = 725.18869 LBS/IN SQ

6 N/MM SQ to LBS/IN SQ = 870.22643 LBS/IN SQ

7 N/MM SQ to LBS/IN SQ = 1015.26417 LBS/IN SQ

8 N/MM SQ to LBS/IN SQ = 1160.3019 LBS/IN SQ

9 N/MM SQ to LBS/IN SQ = 1305.33964 LBS/IN SQ

10 N/MM SQ to LBS/IN SQ = 1450.37738 LBS/IN SQ


Want other units?

You can do the reverse unit conversion from LBS/IN SQ to N/MM SQ, or enter any two units below:

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Common pressure conversions


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.


Metric conversions and more

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, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!