How do I convert Miles per Hour to Kilometres per Hour?

To convert Miles per Hour (mph) to Kilometres per Hour (km/h), use the formula: 1 mph = 1.609344 km/h. For example, 1 mph equals 1.6093 km/h.

How many km/h are in one mph?

There are 1.6093 kilometres per hour in one miles per hour (1 mph = 1.6093 km/h).

What is the conversion formula for mph to km/h?

The exact conversion formula is: 1 mph = 1.609344 km/h. This converter uses this formula to give you an accurate result for any value you enter.

Miles per Hour to Kilometres per Hour Converter

This free speed converter converts Miles per Hour (mph) to Kilometres per Hour (km/h) and back again. The exact conversion factor is 1 mph = 1.6093 km/h, so 10 mph equals 16.0934 km/h.

Type a value in either field — the result updates in real time. The reference table below shows common conversion values at a glance. All calculations run entirely in your browser with no data sent to any server.

Miles per Hour (mph)	Kilometres per Hour (km/h)
1 mph	1.6093 km/h
30 mph	48.2803 km/h
60 mph	96.5606 km/h
100 mph	160.9344 km/h