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🚗 KPH to MPH Converter

Convert kilometres per hour to miles per hour. Also shows metres per second for scientific reference.

ℹ️ Note: All conversions use internationally recognised exact or standard values.

KPH to MPH — International Speed Conversion

Kilometres per hour (kph or km/h) is the standard unit of speed used on road signs in the vast majority of countries worldwide, including all of continental Europe, Australia, Canada, and most of Asia and Africa. Miles per hour (mph) is used in the United States and a small number of other territories.

Converting kph to mph is essential when travelling between metric and imperial speed limit countries, or when reading sports data (e.g. football shot speeds) from different countries. It is also needed by cyclists and runners using GPS devices set to different units.

Common conversions to remember: 50 kph = 31.1 mph (urban limit in many countries); 80 kph = 49.7 mph; 100 kph = 62.1 mph; 120 kph = 74.6 mph; 130 kph = 80.8 mph (typical EU motorway limit).

Formula

To convert kph to mph: mph = kph × 0.621371. To convert kph to m/s: m/s = kph ÷ 3.6.

Speed Limit Comparisons

  • 30 kph = 18.6 mph (residential zones in Europe)
  • 50 kph = 31.1 mph (urban speed limit in most of Europe)
  • 80 kph = 49.7 mph (rural roads in France and some other countries)
  • 100 kph = 62.1 mph (motorway limit in some countries)
  • 110 kph = 68.4 mph (motorway limit in several European countries)
  • 130 kph = 80.8 mph (common European motorway limit)

Sports Speed Conversions

Speed in sport is often reported in different units depending on the country. Tennis serves are measured in km/h in most tournaments but mph on US broadcasts. Football shot speed data from European leagues typically uses km/h. This converter helps you make instant sense of any figure.

KPH vs MPH in Everyday Life

If you are driving in a country that uses miles per hour, note that many European roads have 120–130 kph (European motorway) limits. Always check and observe local speed signs when travelling across borders.

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Accurate Conversions: All conversion factors used are internationally standardised values from the International System of Units (SI) and are exact where defined.

Related Calculators

  • MPH to KPH Converter — Convert miles per hour to kilometres per hour for European driving.
  • Kilometres to Miles — Convert distance in km to miles. Useful for European routes and odometers.
  • Miles to Kilometres — Convert miles to km. Handy for booking European hire cars and ferry crossings.