Full form of PSI is Pounds per Square Inch (lb/in2 preferred)
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Frequently Asked Questions
What is the full form of PSI?
PSI stands for Pounds per Square Inch (lb/in2 preferred). Fullformexpand.com has 143 other full forms of PSI abbreviation.
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Citations
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"PSI." Fullformexpand.com, https://www.fullformexpand.com/psi/pounds-per-square-inch-lbin2-preferred. Accessed 5 Jul. 2026.
Fullformexpand.com, 2026. "PSI." Accessed July 5, 2026. https://www.fullformexpand.com/psi/pounds-per-square-inch-lbin2-preferred.
"PSI." (n.d.). Fullformexpand.com. Retrieved July 5, 2026, from https://www.fullformexpand.com/psi/pounds-per-square-inch-lbin2-preferred.
PSI. (2026). Fullformexpand.com. Available at: https://www.fullformexpand.com/psi/pounds-per-square-inch-lbin2-preferred (Accessed: 5 July 2026).
| Abbreviation | Full Form | Category |
|---|---|---|
| P.S.I. | Pressure Systems International |
Others
|
| PSI | Pacific Stratus Investigation |
Others
|
| PSI | Pacific Sulfur Investigation |
Others
|
| PSI | Packaging Services Industries |
Others
|
| PSI | Packet Switched Interface |
Others
|
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PSI Full Form
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