Speed of Sound Air to Knots Converter
CommonMeters per second, km/h, mph and more.
How to convert Speed of Sound Air to Knots
Multiply the speed of sound air value by 666.739: 1 Mach 1 = 666.739 kn. Going the other way, 1 kn = 0.00149984 Mach 1, so divide by 666.739 or use the Knots to Speed of Sound Air converter.
About these units
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.
Knots (kn)
A knot is one nautical mile per hour, exactly 1.852 km/h or about 1.151 mph. Ship and aircraft speeds and wind speeds at sea are given in knots.
Speed of Sound Air to Knots conversion table
| Speed of Sound Air (Mach 1) | Knots (kn) |
|---|---|
| 1 Mach 1 | 666.739 kn |
| 2 Mach 1 | 1,333.48 kn |
| 3 Mach 1 | 2,000.22 kn |
| 4 Mach 1 | 2,666.96 kn |
| 5 Mach 1 | 3,333.7 kn |
| 10 Mach 1 | 6,667.39 kn |
| 20 Mach 1 | 13,334.8 kn |
| 25 Mach 1 | 16,668.5 kn |
| 50 Mach 1 | 33,337 kn |
| 100 Mach 1 | 66,673.9 kn |
| 500 Mach 1 | 333,370 kn |
| 1,000 Mach 1 | 666,739 kn |
More speed of sound air conversions
- Speed of Sound Air to Speed of Light1 Mach 1 = 1.1441e-6 c
- Speed of Sound Air to Mach Number1 Mach 1 = 1 M
- Speed of Sound Air to Meters per Second1 Mach 1 = 343 m/s
- Speed of Sound Air to Miles per Hour1 Mach 1 = 767.269 mph
- Speed of Sound Air to Centimeters per Second1 Mach 1 = 34,300 cm/s
- Speed of Sound Air to Kilometers per Second1 Mach 1 = 0.343 km/s
See every unit on the Speed Converter.