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Kilopound-force per square inch (ksi)

Exactly 1000 psi.

What is a ksi?

Symbol
ksi
Quantity
Pressure
Unit system
US customary
Definition
Exactly 1000 psi.
Exact
Yes, the value is exact by definition
Source
NIST Special Publication 811 (2008), Appendix B.8

Common applications

Used in US engineering for material strength and stress. One ksi equals 1000 psi.

Kilopound-force per square inch in other pressure units

Kilopound-force per square inch quick reference

Kilopound-force per square inch in other units
Kilopound-force per square inchMegapascalBarPound-force per square inch
1 ksi≈ 6.894757293 MPa≈ 68.94757293 bar= 1000 psi
10 ksi≈ 68.94757293 MPa≈ 689.4757293 bar= 10000 psi
100 ksi≈ 689.4757293 MPa≈ 6894.757293 bar= 100000 psi
1000 ksi≈ 6894.757293 MPa≈ 68947.57293 bar= 1000000 psi

Where the ksi fits

The next smaller pressure unit is the megapascal (MPa). 1 ksi ≈ 6.894757293 MPa, and 1 MPa ≈ 0.1450377377 ksi.

The next larger pressure unit is the gigapascal (GPa). 1 ksi ≈ 0.006894757293 GPa, and 1 GPa ≈ 145.0377377 ksi.

Frequently asked questions

How many megapascals are in one ksi?
One ksi ≈ 6.894757293 MPa (megapascals).
How many bars are in one ksi?
One ksi ≈ 68.94757293 bar (bars).
How many psi are in one ksi?
One ksi = 1000 psi (psi).