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Stress

Mpsitopsi

Convert megapounds-force per square inch (stress) (Mpsi) to pounds-force per square inch (stress) (psi).

Factor1 Mpsi = 1000000 psi

Converter

Mpsi

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

Result
1.00000e+6psi

Rendered to 6 significant figures.

Formula

Formula
psi = Mpsi × 1000000

Multiply any value in megapounds-force per square inch (stress) by 1000000 to obtain the value in pounds-force per square inch (stress).

Worked example

Convert 1 Mpsi to psi.

  1. 01Start with 1 Mpsi.
  2. 02Multiply by the conversion factor: 1 × 1000000 = 1.00000e+6 psi.
Result1 Mpsi = 1.00000e+6 psi

Conversion table

Mpsipsi
11.0000e+6
22.0000e+6
55.0000e+6
101e+7
202e+7
505e+7
1001e+8
2002e+8
5005e+8
10001e+9

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from Mpsi to psi?
1 Mpsi equals 1000000 psi. To convert, multiply the value in megapounds-force per square inch (stress) by 1000000.
How do I convert 1 Mpsi to psi?
1 Mpsi = 1.00000e+6 psi. For any value, multiply by 1000000.
How do I convert psi back to Mpsi?
Divide by the same factor — or equivalently, multiply by 1e-6. So 1 psi = 1e-6 Mpsi.
When would I need to convert megapound-force per square inch (stress) to pound-force per square inch (stress)?
Stress conversions between Mpsi and psi are routine in mechanics-of-materials work: yield, ultimate and allowable-stress specification, Young's-modulus tables and structural-design code calculations. MPa and N/mm² dominate ISO and European datasheets, psi and ksi dominate US structural codes, and kgf/cm² and kgf/mm² appear in legacy JIS and heavy-engineering documentation. Stress is the same physical dimension as pressure but a different engineering quantity — this category is mechanics-of-materials, not process pressure.
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).

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