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Pressure

ksitopsi

Convert kilopounds-force per square inch (ksi) to pounds-force per square inch (psi).

Factor1 ksi = 1000 psi

Converter

ksi

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

Result
1000psi

Rendered to 6 significant figures.

Formula

Formula
psi = ksi × 1000

Multiply any value in kilopounds-force per square inch by 1000 to obtain the value in pounds-force per square inch.

Worked example

Convert 1 ksi to psi.

  1. 01Start with 1 ksi.
  2. 02Multiply by the conversion factor: 1 × 1000 = 1000 psi.
Result1 ksi = 1000 psi

Conversion table

ksipsi
11000
22000
55000
1010000
2020000
5050000
1001.0000e+5
2002.0000e+5
5005.0000e+5
10001.0000e+6

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from ksi to psi?
1 ksi equals 1000 psi. To convert, multiply the value in kilopounds-force per square inch by 1000.
How do I convert 1 ksi to psi?
1 ksi = 1000 psi. For any value, multiply by 1000.
How do I convert psi back to ksi?
Divide by the same factor — or equivalently, multiply by 0.001. So 1 psi = 0.001 ksi.
When would I need to convert kilopound-force per square inch to pound-force per square inch?
Pressure conversions between ksi and psi 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).

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