PSI to Pound Force Square Inch Converter 2025 - Pressure Calculator | Thiyagi

PSI to Pound Force per Square Inch Converter

Convert PSI to pound force per square inch with precision for engineering applications

Quick Reference

1 psi
= 1 lbf/in²
10 psi
= 10 lbf/in²
50 psi
= 50 lbf/in²
100 psi
= 100 lbf/in²

About This Converter

PSI (pounds per square inch) and pound force per square inch (lbf/in²) are essentially the same unit with identical values.

Conversion Formula:
Pound force per square inch = PSI × 1
(Direct equivalence)

Common Applications

  • Hydraulic system design
  • Pneumatic equipment
  • Tire pressure monitoring
  • Industrial pressure testing
  • Engineering calculations