Convert Mach number to meters per second and m/s to Mach instantly. Bidirectional speed converter with formula and common values.
To convert Mach to m/s, multiply by 343. This value is the speed of sound in dry air at 20°C at sea level, the standard reference condition.
| Mach | m/s |
|---|---|
| 0.3 | 102.9 |
| 0.85 | 291.6 |
| 1.0 | 343.0 |
| 1.5 | 514.5 |
| 2.0 | 686.0 |
| 3.0 | 1,029.0 |
| 5.0 | 1,715.0 |
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Mach 1.5 equals 514.5 meters per second (1.5 × 343).
Multiply the Mach number by 343. For example, Mach 1.5 × 343 = 514.5 m/s.
The speed of sound in dry air at 20°C (68°F) at sea level is approximately 343 m/s. It varies with temperature, humidity, and altitude.
Mach 5 equals 1,715 m/s (5 × 343). Speeds at Mach 5 and above are classified as hypersonic.