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Speed: Enter a value to convert
| Miles per Hour (mph) | Kilometers per Hour (kph) |
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Convert miles per hour (mph) to kilometers per hour (kph) or vice versa effortlessly with this lightweight tool—great for driving, sports, or travel!
Miles per hour (mph) is an imperial unit of speed equal to one mile traveled in one hour. Kilometers per hour (kph) is a metric unit equal to one kilometer per hour.
Mph emerged with the mile in medieval England, standardized for speed in the 19th century. Kph was introduced with the metric system in France in the late 18th century.
Mph is used in the US and UK for vehicle speeds and aviation. Kph is standard in most countries for road signs, sports, and scientific measurements.
Multiply the speed in mph by 1.60934. For example, 60 mph × 1.60934 = 96.5604 kph.
Yes, it uses the precise conversion factor of 1 mph = 1.60934 kph, with results to 4 decimal places for accuracy.
Absolutely! It’s perfect for converting speed limits or car speeds between imperial and metric systems.