megapascal [MPa] to pound per square inch [psi] Converter

Quick Reference

1 megapascal (MPa) = 145.0376808 pound per square inch (psi)

1 pound per square inch (psi) = 0.00689476 megapascal (MPa)

How to Convert megapascal to pound per square inch

1 MPa = 145.03768078 psi
1 psi = 0.006894760000450141 MPa

To convert megapascal to pound per square inch, multiply the value by 145.0376808. To convert pound per square inch back to megapascal, divide by 145.0376808.

Example: convert 10 MPa to psi:
10 MPa = 10 x 145.03768078 = 1450.3768077999998 psi

↔ Convert pound per square inch to megapascal

megapascal

Definition: The megapascal (symbol: MPa) is a multiple of the pascal, which is the SI unit of pressure and stress. One MPa is equal to 1,000,000 pascals.

History/origin: Like the pascal, the megapascal's origin is tied to the development of SI units. It provides a more convenient scale for expressing large pressures.

Current use: Megapascals are frequently used in engineering, especially in the fields of material science, structural engineering, and geomechanics, for measuring the strength of materials, stresses in structures, and pressures in geological formations.

pound per square inch

Definition: Pound per square inch (symbol: psi or lbf/in²) is a unit of pressure in the imperial and US customary systems. It is defined as the pressure resulting from a force of one pound-force applied to an area of one square inch.

History/origin: The pound per square inch is rooted in the English system of units. Its widespread use grew with the development of steam engines and other technologies requiring pressure measurements.

Current use: psi is commonly used in the United States for measuring tire pressure, hydraulic pressure, steam pressure, and the pressure of compressed gases. It's prevalent in automotive, manufacturing, and various engineering applications.

megapascal to pound per square inch Conversion Table

megapascal [MPa]	pound per square inch [psi]
1 MPa	145.03768078 psi
2 MPa	290.07536156 psi
5 MPa	725.1884038999999 psi
10 MPa	1450.3768077999998 psi
20 MPa	2900.7536155999996 psi
50 MPa	7251.884038999999 psi
100 MPa	14503.768077999997 psi
200 MPa	29007.536155999995 psi
500 MPa	72518.84039 psi
1000 MPa	145037.68078 psi

Common pairs of Pressure

pascal

pascal to kilopascal pascal to megapascal pascal to hectopascal pascal to bar pascal to torr

kilopascal

kilopascal to pascal kilopascal to megapascal kilopascal to hectopascal kilopascal to bar kilopascal to torr

megapascal

megapascal to pascal megapascal to kilopascal megapascal to hectopascal megapascal to bar megapascal to torr

hectopascal

hectopascal to pascal hectopascal to kilopascal hectopascal to megapascal hectopascal to bar hectopascal to torr

bar

bar to pascal bar to kilopascal bar to megapascal bar to hectopascal bar to torr

torr

torr to pascal torr to kilopascal torr to megapascal torr to hectopascal torr to bar

pound per square inch

pound per square inch to pascal pound per square inch to kilopascal pound per square inch to megapascal pound per square inch to hectopascal pound per square inch to bar

kilopound per square inch

kilopound per square inch to pascal kilopound per square inch to kilopascal kilopound per square inch to megapascal kilopound per square inch to hectopascal kilopound per square inch to bar

megapascal [MPa] to pound per square inch [psi] Converter

To convert megapascal to pound per square inch, enter your value in the MPa field above and the result in psi will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your MPa value by the fixed conversion ratio to get the equivalent in psi.

Our megapascal to pound per square inch converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.

Yes, absolutely. Simply swap the source and destination units in the converter — select psi as your input unit and MPa as your output unit. The same precision and standardized conversion factor applies in both directions.

Converting between megapascal and pound per square inch comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.

Yes, the megapascal to pound per square inch converter is completely free. No account or registration is required, and there are no usage limits. It works on any device — smartphones, tablets, and desktop computers — directly in your browser.

megapascal and pound per square inch are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.

megapascal [MPa] to pound per square inch [psi] Converter

Quick Reference

1 megapascal (MPa) = 145.0376808 pound per square inch (psi)

1 pound per square inch (psi) = 0.00689476 megapascal (MPa)

How to Convert megapascal to pound per square inch

1 MPa = 145.03768078 psi
1 psi = 0.006894760000450141 MPa

To convert megapascal to pound per square inch, multiply the value by 145.0376808. To convert pound per square inch back to megapascal, divide by 145.0376808.

Example: convert 10 MPa to psi:
10 MPa = 10 x 145.03768078 = 1450.3768077999998 psi

↔ Convert pound per square inch to megapascal

megapascal

Definition: The megapascal (symbol: MPa) is a multiple of the pascal, which is the SI unit of pressure and stress. One MPa is equal to 1,000,000 pascals.

History/origin: Like the pascal, the megapascal's origin is tied to the development of SI units. It provides a more convenient scale for expressing large pressures.

pound per square inch

megapascal to pound per square inch Conversion Table

megapascal [MPa]	pound per square inch [psi]
1 MPa	145.03768078 psi
2 MPa	290.07536156 psi
5 MPa	725.1884038999999 psi
10 MPa	1450.3768077999998 psi
20 MPa	2900.7536155999996 psi
50 MPa	7251.884038999999 psi
100 MPa	14503.768077999997 psi
200 MPa	29007.536155999995 psi
500 MPa	72518.84039 psi
1000 MPa	145037.68078 psi

Common pairs of Pressure

pascal

pascal to kilopascal pascal to megapascal pascal to hectopascal pascal to bar pascal to torr

kilopascal

kilopascal to pascal kilopascal to megapascal kilopascal to hectopascal kilopascal to bar kilopascal to torr

megapascal

megapascal to pascal megapascal to kilopascal megapascal to hectopascal megapascal to bar megapascal to torr

hectopascal

hectopascal to pascal hectopascal to kilopascal hectopascal to megapascal hectopascal to bar hectopascal to torr

bar

bar to pascal bar to kilopascal bar to megapascal bar to hectopascal bar to torr

torr

torr to pascal torr to kilopascal torr to megapascal torr to hectopascal torr to bar

pound per square inch

pound per square inch to pascal pound per square inch to kilopascal pound per square inch to megapascal pound per square inch to hectopascal pound per square inch to bar

kilopound per square inch

kilopound per square inch to pascal kilopound per square inch to kilopascal kilopound per square inch to megapascal kilopound per square inch to hectopascal kilopound per square inch to bar