Last updated: December 22, 2025
“lbs” to psi (what people usually mean)
In many everyday contexts (like tires), people say “lbs” when they actually mean psi — pounds-force per square inch.
Important distinction:
- lb (pound) on its own is a mass/force label (context-dependent).
- psi is a pressure unit: lb/in².
This calculator treats “lbs” as lb/in² so you can convert between that shorthand, psi, and metric pressure units like kPa.
Quick identity