Convert pound/square inch to gram-force/square millimetre


pound/square inch
grams per square mm

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/square inch (relative to atmosphere)
grams per square mm (relative to vacuum)



Did you mean to convert pound/square inch
pound/square inch [gauge]
pound/square inch [absolute]
 to gram-force/square megametre
gram-force/square millimetre

More information from the unit converter

How many pound/square inch in 1 grams per square mm? The answer is 1.4223343334285. We assume you are converting between pound/square inch and gram-force/square millimetre. You can view more details on each measurement unit: pound/square inch or grams per square mm The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00014503773800722 pound/square inch, or 0.00010197162129779 grams per square mm. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pounds/square inch and grams-force/square millimeter. Type in your own numbers in the form to convert the units!



Quick conversion chart of pound/square inch to grams per square mm

1 pound/square inch to grams per square mm = 0.70307 grams per square mm

5 pound/square inch to grams per square mm = 3.51535 grams per square mm

10 pound/square inch to grams per square mm = 7.0307 grams per square mm

20 pound/square inch to grams per square mm = 14.06139 grams per square mm

30 pound/square inch to grams per square mm = 21.09209 grams per square mm

40 pound/square inch to grams per square mm = 28.12278 grams per square mm

50 pound/square inch to grams per square mm = 35.15348 grams per square mm

75 pound/square inch to grams per square mm = 52.73022 grams per square mm

100 pound/square inch to grams per square mm = 70.30696 grams per square mm


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You can do the reverse unit conversion from grams per square mm to pound/square inch, or enter any two units below:

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Common pressure conversions


Definition: Pound/square inch

The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) 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.


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!