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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) = 0.3436 Kilometer per Second (km/s).
| Mach (20°C, 1 atm) (Ma) | Kilometer per Second (km/s) |
|---|---|
| 0.001 | 0.0003436 |
| 0.01 | 0.003436 |
| 0.1 | 0.03436 |
| 0.5 | 0.1718 |
| 1 | 0.3436 |
| 2 | 0.6872 |
| 5 | 1.718 |
| 10 | 3.436 |
| 15 | 5.154 |
| 25 | 8.59 |
| 50 | 17.18 |
| 75 | 25.77 |
| 100 | 34.36 |
| 250 | 85.9 |
| 500 | 171.8 |
| 750 | 257.7 |
| 1000 | 343.6 |




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