💨 mph to km/h — Mile per Hour to Kilometer per Hour Converter

Convert speed units — km/h, mph, m/s, knots, Mach.

Formula 1 mph = 1.6093427 km/h
UnitNameValue
m/s Meter per Second 0.44704
km/h Kilometer per Hour 1.6093427
ft/s Foot per Second 1.4666667
kn Knot 0.86897699
Mach Mach 0.001313703

About Mile per Hour to Kilometer per Hour Conversion

The Mile per Hour (mph) and the Kilometer per Hour (km/h) are both units of speed. Converting between them is straightforward using the formula above.

Formula: 1 mph = 1.6093427 km/h

This converter uses internationally recognized conversion factors. All calculations are performed client-side in your browser — no data is sent to any server.

Frequently Asked Questions

How do I convert Mile per Hour to Kilometer per Hour?

Use the converter above — enter your value in Mile per Hour and the result appears instantly in Kilometer per Hour. The formula is: 1 mph = 1.6093427 km/h

How many Kilometer per Hour are in 100 Mile per Hour?

100 mph = 160.93427 km/h

What is 1 Mile per Hour in Kilometer per Hour?

1 mph = 1.6093427 km/h

Is this Mile per Hour to Kilometer per Hour converter free?

Yes — Unitafy is completely free, requires no signup, and works instantly in your browser.