Convert MPa to psi, psi to MPa - Pressure Conversions

Online calculators to convert megapascals to pounds per square inch (MPa to psi) and pounds per square inch to megapascals (psi to MPa) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Pressure units.

Conversion Calculators

Enter your value in one of the conversion calculators below:

Convert MPa to psi

Convert psi to MPa

* If the result of your conversion is 0, try increasing the "Decimals".

How to convert MPa to psi : Use the conversion calculator titled "Convert MPa to psi". Enter a value in the MPa field and click on the "Calculate psi" button. Your answer will appear in the psi field.

How to convert psi to MPa : Use the conversion calculator titled "Convert psi to MPa". Enter a value in the psi field and click on the "Calculate MPa" button. Your answer will appear in the MPa field.

Conversion Definitions

The following is a list of definitions relating to conversions between megapascals and psi.

What is a megapascal (MPa)?

A megapascal is a unit of Pressure in the International System of Units (SI). The symbol for megapascal is MPa. There are 0.00689475729 megapascals in a psi.

What is pounds per square inch (psi)?

Pounds per square inch (or pound-force per square inch) is a non-SI unit of Pressure. The symbol for pounds per square inch is psi or lbf/in 2 . There are 145.0377 psi in a megapascal.

Conversion Formulas

Let's take a closer look at the conversion formulas so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.

The formula to convert from MPa to psi is:

The formula to convert from psi to MPa is:

Conversion Examples

Next, let's look at some examples showing the work and calculations that are involved in converting from megapascals to pounds per square inch (MPa to psi) or converting from pounds per square inch to megapascals (psi to MPa).

Megapascal to Psi Conversion Example

Psi to Megapascal Conversion Example

Conversion Tables

For quick reference purposes, below are conversion tables that you can use to convert from MPa to psi, and psi to MPa.

Megapascals to Psi Conversion Chart

Psi to Megapascals Conversion Chart

Understanding the Pressure Units

This table provides a summary of the Pressure units within their respective measurement systems.

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