# Speed Unit Conversion Calculators

- Convert Knots
- Convert Mach
- Convert Speed Of Sound
- Convert Miles Per Hour
- Convert Feet Per Second
- Convert Kilometers Per Second
- Convert Kilometers Per Hour
- Convert Meters Per Second
- Convert Centimeters Per Second

## What is Speed

Speed is a measurement of how fast an object is moving, or the rate that an object moves over a distance. An object moving at a high speed will cover a lot of distance in a short amount of time, while an object moving at a low speed will cover little distance over a longer amount of time. Thus, speed can be measured as the distance an object travels divided by the time it takes to travel this distance, ie. speed = distance / time. The Physics Classrom has more information on understanding and measuring speed, and how it compares with an object's velocity. Speed over land is commonly measured in miles per hour or kilometers per hour, and speed over sea is commonly measured in knots. The speed of sound is equal to 767.27 miles per hour or 1,235 kilometers per hour.

## Units of Speed Measurement

## Common Speed Measurement Conversions

- Knots to miles per hour speed conversion
- 1 knot is equal to 1.150779 miles per hour
- Miles Per Hour to kilometers per hour speed conversion
- 1 mile per hour is equal to 1.609344 kilometers per hour
- Mach to miles per hour speed conversion
- 1 mach is equal to 767.269148 miles per hour
- Mach to kilometers per hour speed conversion
- 1 mach is equal to 1,235 kilometers per hour
- Speed Of Sound to miles per hour speed conversion
- 1 speed of sound is equal to 767.269148 miles per hour
- Meters Per Second to feet per second speed conversion
- 1 meter per second is equal to 3.28084 feet per second

## Speed Unit Conversion Table

Convert From | Knot | Mach | Speed Of Sound | Mile Per Hour | Foot Per Second | Kilometer Per Second | Kilometer Per Hour | Meter Per Second | Centimeter Per Second |
---|---|---|---|---|---|---|---|---|---|

1 knot = | 1 kn | 0.0015 M | 0.0015 | 1.150779 mph | 1.68781 ft/sec | 0.000514 km/sec | 1.852 km/h | 0.514444 m/sec | 51.444444 cm/sec |

1 mach = | 666.738661 kn | 1 M | 1 | 767.269148 mph | 1,125 ft/sec | 0.343 km/sec | 1,235 km/h | 343 m/sec | 34,300 cm/sec |

1 speed of sound = | 666.738661 kn | 1 M | 1 | 767.269148 mph | 1,125 ft/sec | 0.343 km/sec | 1,235 km/h | 343 m/sec | 34,300 cm/sec |

1 mile per hour = | 0.868976 kn | 0.001303 M | 0.001303 | 1 mph | 1.466667 ft/sec | 0.000447 km/sec | 1.609344 km/h | 0.44704 m/sec | 44.704 cm/sec |

1 foot per second = | 0.592484 kn | 0.000889 M | 0.000889 | 0.681818 mph | 1 ft/sec | 0.000305 km/sec | 1.09728 km/h | 0.3048 m/sec | 30.48 cm/sec |

1 kilometer per second = | 1,944 kn | 2.915452 M | 2.915452 | 2,237 mph | 3,281 ft/sec | 1 km/sec | 3,600 km/h | 1,000 m/sec | 100,000 cm/sec |

1 kilometer per hour = | 0.539957 kn | 0.00081 M | 0.00081 | 0.621371 mph | 0.911344 ft/sec | 0.000278 km/sec | 1 km/h | 0.277778 m/sec | 27.777778 cm/sec |

1 meter per second = | 1.943844 kn | 0.002915 M | 0.002915 | 2.236936 mph | 3.28084 ft/sec | 0.001 km/sec | 3.6 km/h | 1 m/sec | 100 cm/sec |

1 centimeter per second = | 0.019438 kn | 0.000029155 M | 0.000029155 | 0.022369 mph | 0.032808 ft/sec | 0.000010 km/sec | 0.036 km/h | 0.01 m/sec | 1 cm/sec |