1 pound per square inch [psi] = 0.001 kip per square inch [ksi]
Example: 1 pound per square inch [psi] equals 0.001 kip per square inch [ksi].
Examples
1 pound per square inch [psi] = 0.001 kip per square inch [ksi]
2 pound per square inch [psi] = 0.002 kip per square inch [ksi]
5 pound per square inch [psi] = 0.005 kip per square inch [ksi]
10 pound per square inch [psi] = 0.01 kip per square inch [ksi]
20 pound per square inch [psi] = 0.02 kip per square inch [ksi]
25 pound per square inch [psi] = 0.025 kip per square inch [ksi]
Practical Uses for psi to ksi
quick homework checksshopping and product comparisonstravel planningprofessional estimatesDIY and household measurementsgeneral reference
Sources and Accuracy
Pressure conversions use pascal as the reference unit and include common engineering, weather, tire, and laboratory pressure units.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
pound per square inch [psi]
Definition
Pound per square inch is a pressure unit showing pounds-force applied over one square inch.
History
PSI comes from imperial force and area units and remains common in mechanical and pressure-gauge contexts.
Current use
PSI is used for tire pressure, compressors, plumbing, hydraulics, gas cylinders, and equipment ratings.
kip per square inch [ksi]
Definition
The kip per square inch (ksi) is a pressure unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use kip per square inch when comparing pressure values, checking specifications, converting between systems, or preparing quick estimates.
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How to Convert
Enter the value in the “From value” field.
Confirm the source unit is pound per square inch [psi].
Confirm the target unit is kip per square inch [ksi].