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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) = 0.2257555848 Velocity of Sound in Sea Water (20°C, 10m depth) (vs (sea)).
| Mach (20°C, 1 atm) (Ma) | Velocity of Sound in Sea Water (20°C, 10m depth) (vs (sea)) |
|---|---|
| 0.001 | 0.0002257555848 |
| 0.01 | 0.002257555848 |
| 0.1 | 0.02257555848 |
| 0.5 | 0.1128777924 |
| 1 | 0.2257555848 |
| 2 | 0.4515111695 |
| 5 | 1.128777924 |
| 10 | 2.257555848 |
| 15 | 3.386333771 |
| 25 | 5.643889619 |
| 50 | 11.28777924 |
| 75 | 16.93166886 |
| 100 | 22.57555848 |
| 250 | 56.43889619 |
| 500 | 112.8777924 |
| 750 | 169.3166886 |
| 1000 | 225.7555848 |




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