Convert pound/square inch to megapascal


pound/square inch
mega pascals

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)
mega pascals (relative to vacuum)



Did you mean to convert pound/square inch
pound/square inch [gauge]
pound/square inch [absolute]
 to mega pascals

More information from the unit converter

How many pound/square inch in 1 mega pascals? The answer is 145.03773800722. We assume you are converting between pound/square inch and megapascal. You can view more details on each measurement unit: pound/square inch or mega pascals The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00014503773800722 pound/square inch, or 1.0E-6 mega pascals. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pounds/square inch and megapascals. Type in your own numbers in the form to convert the units!



Quick conversion chart of pound/square inch to mega pascals

1 pound/square inch to mega pascals = 0.00689 mega pascals

10 pound/square inch to mega pascals = 0.06895 mega pascals

50 pound/square inch to mega pascals = 0.34474 mega pascals

100 pound/square inch to mega pascals = 0.68948 mega pascals

200 pound/square inch to mega pascals = 1.37895 mega pascals

500 pound/square inch to mega pascals = 3.44738 mega pascals

1000 pound/square inch to mega pascals = 6.89476 mega pascals


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You can do the reverse unit conversion from mega pascals 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.


Definition: Megapascal

The SI prefix "mega" represents a factor of 106, or in exponential notation, 1E6.

So 1 megapascal = 106 pascals.

The definition of a pascal is as follows:

The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher.


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!