Convert Pounds per square foot per hour to Pounds per square inch per second
Convert Pounds per square foot per hour (lb/(ft²·h)) to Pounds per square inch per second (lb/(in²·s)) instantly and accurately.
Conversion Formula
lb/(in²·s) = lb/(ft²·h) × 1.929012346e-6
About Pounds per square foot per hour
The pound per square foot per hour (lb/(ft²·h)) equals 0.45359237/(0.09290304 × 3600) ≈ 1.356 × 10⁻³ kg/(m²·s). It is used in US heat and mass transfer texts (e.g., Perry's Chemical Engineers' Handbook) for mass flux through surfaces in drying, absorption, and distillation operations using consistent BTU-lb-h units. 1 lb/(ft²·h) ≈ 1.356 g/(m²·s).
About Pounds per square inch per second
The pound per square inch per second (lb/(in²·s)) equals 0.45359237/(0.0254 × 0.0254) ≈ 703.07 kg/(m²·s). It is used in US firearms ballistics, shaped-charge and explosives engineering, and hydraulic press analysis where forces per square inch dominate the unit system. 1 lb/(in²·s) ≈ 703.07 kg/(m²·s) = 144 lb/(ft²·s).
Quick Reference Table
| Pounds per square foot per hour (lb/(ft²·h)) | Pounds per square inch per second (lb/(in²·s)) |
|---|---|
| 1 lb/(ft²·h) | 1.929 × 10-6 lb/(in²·s) |
| 2 lb/(ft²·h) | 3.858 × 10-6 lb/(in²·s) |
| 5 lb/(ft²·h) | 9.645 × 10-6 lb/(in²·s) |
| 10 lb/(ft²·h) | 1.929 × 10-5 lb/(in²·s) |
| 25 lb/(ft²·h) | 4.823 × 10-5 lb/(in²·s) |
| 50 lb/(ft²·h) | 9.645 × 10-5 lb/(in²·s) |
| 100 lb/(ft²·h) | 0.000192901 lb/(in²·s) |