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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) = 1352755.906 Yard per Hour (yd/h).
| Mach (20°C, 1 atm) (Ma) | Yard per Hour (yd/h) |
|---|---|
| 0.001 | 1352.755906 |
| 0.01 | 13527.55906 |
| 0.1 | 135275.5906 |
| 0.5 | 676377.9528 |
| 1 | 1352755.906 |
| 2 | 2705511.811 |
| 5 | 6763779.528 |
| 10 | 13527559.06 |
| 15 | 20291338.58 |
| 25 | 33818897.64 |
| 50 | 67637795.28 |
| 75 | 101456692.9 |
| 100 | 135275590.6 |
| 250 | 338188976.4 |
| 500 | 676377952.8 |
| 750 | 1014566929 |
| 1000 | 1352755906 |




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