Convert Miles per Minute to Mach 1
Convert Miles per Minute (mi/min) to Mach 1 (Ma) instantly and accurately.
Conversion Formula
Ma = mi/min × 0.07882218108
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.
About Mach 1
Mach 1 = the speed of sound in dry air at ISA sea-level (15°C, 101.325 kPa) = exactly 340.29 m/s (1,225 km/h; 761 mph). Chuck Yeager first exceeded it on 14 October 1947 in the Bell X-1. At 35,000 ft cruise altitude (−56.5°C), it falls to 295.1 m/s. Flight regimes: subsonic
Quick Reference Table
| Miles per Minute (mi/min) | Mach 1 (Ma) |
|---|---|
| 1 mi/min | 0.0788222 Ma |
| 2 mi/min | 0.157644 Ma |
| 5 mi/min | 0.394111 Ma |
| 10 mi/min | 0.788222 Ma |
| 25 mi/min | 1.97055 Ma |
| 50 mi/min | 3.94111 Ma |
| 100 mi/min | 7.88222 Ma |