▸ processconvert
Pressure

psitoMPa

Convert pounds-force per square inch (psi) to megapascals (MPa).

Factor1 psi = 0.006894757 MPa

Converter

psi

Accepts numbers or expressions, e.g. 150 + 14.7

Result
9.9974MPa

Rendered to 6 significant figures.

Formula

Formula
MPa = psi × 0.006894757

Multiply any value in pounds-force per square inch by 0.006894757 to obtain the value in megapascals.

Worked example

Convert 1450 psi to MPa.

  1. 01Start with 1450 psi.
  2. 02Multiply by the conversion factor: 1450 × 0.006894757 = 9.9974 MPa.
Result1450 psi = 9.9974 MPa

Conversion table

psiMPa
10.0068948
20.01379
50.034474
100.068948
200.1379
500.34474
1000.68948
2001.379
5003.4474
10006.8948

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from psi to MPa?
1 psi equals 0.006894757 MPa. To convert, multiply the value in pounds-force per square inch by 0.006894757.
How do I convert 1 psi to MPa?
1 psi = 0.00689476 MPa. For any value, multiply by 0.006894757.
How do I convert MPa back to psi?
Divide by the same factor — or equivalently, multiply by 145.0377. So 1 MPa = 145.038 psi.
When would I need to convert pound-force per square inch to megapascal?
Pressure conversions between psi and MPa are common when working with mixed-vendor instrumentation, when piping codes use different units to process datasheets, or when converting field readings into SI for hydraulic calculations.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

Related conversions