# Kilometers Per Second to Miles Per Hour Conversion

Enter the speed in kilometers per second below to get the value converted to miles per hour.

**Results in Miles Per Hour:**

## How to Convert Kilometers Per Second to Miles Per Hour

To convert a kilometer per second measurement to a mile per hour measurement, multiply the speed by the conversion ratio. One kilometer per second is equal to 2,236.936292 miles per hour, so use this simple formula to convert:

The speed in miles per hour is equal to the kilometers per second multiplied by 2,236.936292.

**For example,**here's how to convert 5 kilometers per second to miles per hour using the formula above.

Kilometers per second and miles per hour are both units used to measure speed. Keep reading to learn more about each unit of measure.

## Kilometers Per Second

Kilometers per second are a measurement of speed expressing the distance traveled in kilometers in one second.

The kilometer per second, or kilometre per second, is an SI unit of speed in the metric system. Kilometers per second can be abbreviated as *km/s*, and are also sometimes abbreviated as *km/sec*. For example, 1 kilometer per second can be written as 1 km/s or 1 km/sec.

In formal expressions, the slash, or solidus (/), is used to separate units used to indicate division in an expression.^{[1]}

Kilometers per second can be expressed using the formula:

v_{km/s} = d_{km}t_{sec}

The velocity in kilometers per second is equal to the distance in kilometers divided by time in seconds.

## Miles Per Hour

Miles per hour are a measurement of speed expressing the distance traveled in miles in one hour.^{[2]}

The mile per hour is a US customary and imperial unit of speed. Miles per hour can be abbreviated as *mph*, and are also sometimes abbreviated as *mi/h* or *MPH*. For example, 1 mile per hour can be written as 1 mph, 1 mi/h, or 1 MPH.

Miles per hour can be expressed using the formula:

v_{mph} = d_{mi}t_{hr}

The velocity in miles per hour is equal to the distance in miles divided by time in hours.

## Kilometer Per Second to Mile Per Hour Conversion Table

Kilometers Per Second | Miles Per Hour |
---|---|

0.001 km/s | 2.2369 mph |

0.002 km/s | 4.4739 mph |

0.003 km/s | 6.7108 mph |

0.004 km/s | 8.9477 mph |

0.005 km/s | 11.18 mph |

0.006 km/s | 13.42 mph |

0.007 km/s | 15.66 mph |

0.008 km/s | 17.9 mph |

0.009 km/s | 20.13 mph |

0.01 km/s | 22.37 mph |

0.02 km/s | 44.74 mph |

0.03 km/s | 67.11 mph |

0.04 km/s | 89.48 mph |

0.05 km/s | 111.85 mph |

0.06 km/s | 134.22 mph |

0.07 km/s | 156.59 mph |

0.08 km/s | 178.95 mph |

0.09 km/s | 201.32 mph |

0.1 km/s | 223.69 mph |

0.2 km/s | 447.39 mph |

0.3 km/s | 671.08 mph |

0.4 km/s | 894.77 mph |

0.5 km/s | 1,118 mph |

0.6 km/s | 1,342 mph |

0.7 km/s | 1,566 mph |

0.8 km/s | 1,790 mph |

0.9 km/s | 2,013 mph |

1 km/s | 2,237 mph |

## References

- National Institute of Standards and Technology, NIST Guide to the SI, Chapter 6: Rules and Style Conventions for Printing and Using Units, https://www.nist.gov/pml/special-publication-811/nist-guide-si-chapter-6-rules-and-style-conventions-printing-and-using
- Wikipedia, Miles per hour, https://en.wikipedia.org/wiki/Miles_per_hour