Convert Inches per Minute to Miles per Minute
Convert Inches per Minute (in/min) to Miles per Minute (mi/min) instantly and accurately.
Conversion Formula
mi/min = in/min × 1.578282828e-5
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.
About Miles per Minute
A mile per minute (mi/min) = exactly 26.8224 m/s = 60 mph. The X-15 rocket plane flew at ~4.5 mi/min (Mach 6.7); the SR-71 Blackbird at ~2.1 mi/min (Mach 3.2). Speed of sound at sea level ≈ 0.77 mi/min. 'Mile-a-minute' (60 mph = 1 mi/min) was a historic railway milestone first achieved on the Great Western Railway in the 1840s. 1 mi/min = 96.5604 km/h.
Quick Reference Table
| Inches per Minute (in/min) | Miles per Minute (mi/min) |
|---|---|
| 1 in/min | 1.578 × 10-5 mi/min |
| 2 in/min | 3.157 × 10-5 mi/min |
| 5 in/min | 7.891 × 10-5 mi/min |
| 10 in/min | 0.000157828 mi/min |
| 25 in/min | 0.000394571 mi/min |
| 50 in/min | 0.000789141 mi/min |
| 100 in/min | 0.00157828 mi/min |