Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Printable Chart
Related Conversions
0.5 MPa to psi 6 MPa to psi 15 MPa to psi 30 MPa to psi 35 MPa to psi 50 MPa to psi 70 MPa to psi 80 MPa to psi 120 MPa to psi 200 MPa to psi 1,000 MPa to psi 5,000 MPa to psi
Reverse Conversions
1 psi to MPa 2.5 psi to MPa 15 psi to MPa 20 psi to MPa 25 psi to MPa 30 psi to MPa 45 psi to MPa 80 psi to MPa 100 psi to MPa 120 psi to MPa 180 psi to MPa 700 psi to MPa
More Pressure Conversions
1 Torr to Pa 1 atm to kPa 1 atm to psi 10 atm to kPa 10 bar to psi 20 bar to psi 30 inHg to kPa 35 psi to bar 50 bar to psi 101.325 kPa to atm 120 psi to kPa 10,000 kPa to bar

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Common Benchmarks

Espresso machine 9 bar
Atmospheric pressure 101.325 kPa
Bicycle tire 80 psi
Pressure cooker 15 psi
Natural gas line 0.25 psi
Car tire 32 psi

Formula

psi = MPa × 145.0377377302

Example

Example: convert 1.5 megapascals to pounds per square inch.

1.5 MPa = 217.5566066 psi

Conversion table

megapascals (MPa) pounds per square inch (psi)
1 MPa 145.03773773 psi
2 MPa 290.07547546 psi
5 MPa 725.18868865 psi
10 MPa 1450.3773773 psi
20 MPa 2900.7547546 psi
50 MPa 7251.88688651 psi
100 MPa 14503.77377302 psi

Explanation

These are both units.

How to convert megapascals to pounds per square inch

  1. Start with the value in megapascals (MPa).
  2. Multiply it by 145.0377377302.
  3. The result is the measurement in pounds per square inch (psi).

Example: 1.5 MPa → 217.5566066 psi

Frequently Asked Questions

How much is 1.5 megapascals in pounds per square inch?

1.5 megapascals is about 217.557 pounds per square inch.

How many pounds per square inch is 1 megapascal?

1 megapascal is about 145.037738 pounds per square inch.

How many megapascals is 1 pound per square inch?

1 pound per square inch is about 0.006895 megapascals.

What is the difference between megapascals and pounds per square inch?

Both measure pressure, but they are commonly used in different contexts. Megapascals are used for high pressures (materials, hydraulics, and engineering). Pounds per square inch are often used in engineering and tire pressure, especially in US contexts.

Where are megapascals and pounds per square inch used?

In practice: Megapascals are used for high pressures (materials, hydraulics, and engineering). Pounds per square inch are often used in engineering and tire pressure, especially in US contexts.

Why does 1 megapascal equal 145.037738 pounds per square inch?

Because pressure units are defined with a fixed relationship (often relative to the pascal). To convert, multiply by that factor.