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megapascal millipascal |
to |
psi |

How many MPa in 1 psi?
The answer is 0.00689475728.

We assume you are converting between **megapascal** and **pound/square inch**.

You can view more details on each measurement unit:

MPa or
psi

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 1.0E-6 MPa, or 0.000145037738007 psi.

Note that rounding errors may occur, so always check the results.

Use this page to learn how to convert between megapascals and pounds/square inch.

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You can do the reverse unit conversion from psi to MPa, or enter any two units below:

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The SI prefix "mega" represents a factor of
10^{6}, or in exponential notation, 1E6.

So 1 megapascal = 10^{6} 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.

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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