Convert Feet per Second to Inches per Minute
Convert Feet per Second (ft/s) to Inches per Minute (in/min) instantly and accurately.
Conversion Formula
in/min = ft/s × 720
About Feet per Second
A foot per second (ft/s) = exactly 0.3048 m/s - the primary speed unit in US ballistics, hydraulics, and gas dynamics. .308 Winchester muzzle velocity ~2,750 ft/s; 9mm pistol 1,200-1,400 ft/s; .50 BMG 2,910 ft/s. Speed of sound at sea level 1,116 ft/s. River channel mean velocities 0.5-6 ft/s; NFPA sprinkler pipe flows also in ft/s. 1 ft/s = 0.3048 m/s = 1.09728 km/h = 60 ft/min.
About Inches per Minute
An inch per minute (in/min) ≈ 0.4233 mm/s - the standard North American machining feed unit for slow precision cuts. CNC milling in titanium or nickel superalloys: HSS roughing 2-8 in/min; carbide finishing 15-40 in/min. Thread-tapping feeds are calculated in in/min from pitch × RPM. Hydraulic press platen closure for rubber moulding and laminate pressing: 0.05-2 in/min. 1 in/min = 0.0254 m/min ≈ 4.233 × 10⁻⁴ m/s.
Quick Reference Table
| Feet per Second (ft/s) | Inches per Minute (in/min) |
|---|---|
| 1 ft/s | 720 in/min |
| 2 ft/s | 1440 in/min |
| 5 ft/s | 3600 in/min |
| 10 ft/s | 7200 in/min |
| 25 ft/s | 18000 in/min |
| 50 ft/s | 36000 in/min |
| 100 ft/s | 72000 in/min |