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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) = 667.9049676 Knot (kn).
| Mach (20°C, 1 atm) (Ma) | Knot (kn) |
|---|---|
| 0.001 | 0.6679049676 |
| 0.01 | 6.679049676 |
| 0.1 | 66.79049676 |
| 0.5 | 333.9524838 |
| 1 | 667.9049676 |
| 2 | 1335.809935 |
| 5 | 3339.524838 |
| 10 | 6679.049676 |
| 15 | 10018.57451 |
| 25 | 16697.62419 |
| 50 | 33395.24838 |
| 75 | 50092.87257 |
| 100 | 66790.49676 |
| 250 | 166976.2419 |
| 500 | 333952.4838 |
| 750 | 500928.7257 |
| 1000 | 667904.9676 |




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