How do I convert MPH to KPH?

To convert miles per hour (MPH) to kilometers per hour (KPH), multiply the MPH value by 1.60934. For example, 60 MPH equals approximately 96.56 KPH. You can use our calculator to do this conversion automatically.

How do I convert KPH to MPH?

To convert kilometers per hour (KPH) to miles per hour (MPH), multiply the KPH value by 0.621371. For example, 100 KPH equals approximately 62.14 MPH. Our calculator will perform this conversion instantly as you type.

Which countries use KPH vs MPH?

Most countries use KPH, including European Union nations, Canada, Australia, and most Asian, African, and South American countries. MPH is primarily used in the United States, United Kingdom, and several British territories.

How accurate is the speed converter?

Our speed converter is accurate to one decimal place and uses the standard conversion factors: 1 mile = 1.60934 kilometers and 1 kilometer = 0.621371 miles. These are the internationally recognized conversion rates.

Speed Converter

Decimal Places

1.1

Kilometers per Hour

KPH

Miles per Hour

MPH

1 Kilometer = 0.621371 Miles

1 Mile = 1.60934 Kilometers

About Speed Conversion

Common Uses

International Travel
Vehicle Speed Limits
Sports & Racing
Weather Reports

Tips

Use the switch button to swap values
Results update automatically
5 decimal places for precision
Both fields are editable

Speed Units by Country

Countries Using MPH

The United States, United Kingdom, and several British territories primarily use miles per hour (MPH) for speed measurements and road signs. Other countries include Antigua and Barbuda, the Bahamas, and parts of the US Virgin Islands.

Countries Using KPH

Most countries worldwide use kilometers per hour (KPH), including all European Union nations (except the UK), Canada, Australia, New Zealand, and most Asian, African, and South American countries. This is part of the metric system adoption.