Mach Number to Speed of Sound Air Converter
CommonMeters per second, km/h, mph and more.
How to convert Mach Number to Speed of Sound Air
Multiply the mach number value by 1: 1 M = 1 Mach 1. Going the other way, 1 Mach 1 = 1 M, so divide by 1 or use the Speed of Sound Air to Mach Number converter.
About these units
Mach Number (M)
Mach number is speed divided by the local speed of sound; this converter uses 343 m/s, the value in air at 20 °C. Mach 1 at sea level is therefore about 1,235 km/h.
Speed of Sound Air (Mach 1)
The speed of sound in air at 20 °C is about 343 meters per second (1,235 km/h). It falls as the air gets colder, so the exact value depends on conditions.
Mach Number to Speed of Sound Air conversion table
| Mach Number (M) | Speed of Sound Air (Mach 1) |
|---|---|
| 1 M | 1 Mach 1 |
| 2 M | 2 Mach 1 |
| 3 M | 3 Mach 1 |
| 4 M | 4 Mach 1 |
| 5 M | 5 Mach 1 |
| 10 M | 10 Mach 1 |
| 20 M | 20 Mach 1 |
| 25 M | 25 Mach 1 |
| 50 M | 50 Mach 1 |
| 100 M | 100 Mach 1 |
| 500 M | 500 Mach 1 |
| 1,000 M | 1,000 Mach 1 |