▸ processconvert
Stress

ksitoMPa

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

Factor1 ksi = 6.894757 MPa

Converter

ksi

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

Result
344.738MPa

Rendered to 6 significant figures.

Formula

Formula
MPa = ksi × 6.894757

Multiply any value in kilopounds-force per square inch (stress) by 6.894757 to obtain the value in megapascals (stress).

Worked example

Convert 50 ksi to MPa.

  1. 01Start with 50 ksi.
  2. 02Multiply by the conversion factor: 50 × 6.894757 = 344.738 MPa.
Result50 ksi = 344.738 MPa

Conversion table

ksiMPa
16.8948
213.79
534.474
1068.948
20137.9
50344.74
100689.48
2001379
5003447.4
10006894.8

Reference values rounded to 5 significant figures for display.

FAQ

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

Related conversions