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Mach (20°C, 1 atm) (Ma)
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31 conversions shown
To m/s (at 20°C): × 343.6. To km/h (at 20°C): × 1,237. Note: changes with altitude and temperature.
Mach = velocity ÷ speed_of_sound. At 20°C: Mach 1 = 343.6 m/s. Speed of sound = √(γRT/M) where γ = heat capacity ratio.
For example, 1 Mach (20°C, 1 atm) (Ma) = 0.04349367089 Cosmic Velocity - First (v₁).
| Mach (20°C, 1 atm) (Ma) | Cosmic Velocity - First (v₁) |
|---|---|
| 0.001 | 0.00004349367089 |
| 0.01 | 0.0004349367089 |
| 0.1 | 0.004349367089 |
| 0.5 | 0.02174683544 |
| 1 | 0.04349367089 |
| 2 | 0.08698734177 |
| 5 | 0.2174683544 |
| 10 | 0.4349367089 |
| 15 | 0.6524050633 |
| 25 | 1.087341772 |
| 50 | 2.174683544 |
| 75 | 3.262025316 |
| 100 | 4.349367089 |
| 250 | 10.87341772 |
| 500 | 21.74683544 |
| 750 | 32.62025316 |
| 1000 | 43.49367089 |




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