Convert Pounds per square foot per second to Pounds per square inch per second
Convert Pounds per square foot per second (lb/(ft²·s)) to Pounds per square inch per second (lb/(in²·s)) instantly and accurately.
Conversion Formula
lb/(in²·s) = lb/(ft²·s) × 0.006944444444
About Pounds per square foot per second
The pound per square foot per second (lb/(ft²·s)) equals 0.45359237/0.09290304 ≈ 4.882 kg/(m²·s). It is the coherent FPS mass flux unit, used in US aerospace for rocket motor mass flux, ballistic studies, and hypervelocity heat-shield ablation rate specifications. 1 lb/(ft²·s) ≈ 4.882 kg/(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 second (lb/(ft²·s)) | Pounds per square inch per second (lb/(in²·s)) |
|---|---|
| 1 lb/(ft²·s) | 0.00694444 lb/(in²·s) |
| 2 lb/(ft²·s) | 0.0138889 lb/(in²·s) |
| 5 lb/(ft²·s) | 0.0347222 lb/(in²·s) |
| 10 lb/(ft²·s) | 0.0694444 lb/(in²·s) |
| 25 lb/(ft²·s) | 0.173611 lb/(in²·s) |
| 50 lb/(ft²·s) | 0.347222 lb/(in²·s) |
| 100 lb/(ft²·s) | 0.694444 lb/(in²·s) |