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Stress

MPatoksi

Convert megapascals (stress) (MPa) to kilopounds-force per square inch (stress) (ksi).

Factor1 MPa = 0.1450377 ksi

Converter

MPa

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

Result
14.5038ksi

Rendered to 6 significant figures.

Formula

Formula
ksi = MPa × 0.1450377

Multiply any value in megapascals (stress) by 0.1450377 to obtain the value in kilopounds-force per square inch (stress).

Worked example

Convert 100 MPa to ksi.

  1. 01Start with 100 MPa.
  2. 02Multiply by the conversion factor: 100 × 0.1450377 = 14.5038 ksi.
Result100 MPa = 14.5038 ksi

Conversion table

MPaksi
10.14504
20.29008
50.72519
101.4504
202.9008
507.2519
10014.504
20029.008
50072.519
1000145.04

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from MPa to ksi?
1 MPa equals 0.1450377 ksi. To convert, multiply the value in megapascals (stress) by 0.1450377.
How do I convert 1 MPa to ksi?
1 MPa = 0.145038 ksi. For any value, multiply by 0.1450377.
How do I convert ksi back to MPa?
Divide by the same factor — or equivalently, multiply by 6.894757. So 1 ksi = 6.89476 MPa.
When would I need to convert megapascal (stress) to kilopound-force per square inch (stress)?
Stress conversions between MPa and ksi 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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