Mile/Hour to Kilometer/Hour Converter (mph to km/h)

How to Convert Mile/Hour to Kilometer/Hour

Formula: Kilometer/Hour = Mile/Hour × 1.60934271

Example: 1 mph = 1.60934271 km/h

You can also use the interactive converter above. Simply enter any Mile/Hour value and the equivalent Kilometer/Hour value will appear instantly. Click the ⇄ button to reverse the conversion.

A little context on Mile per Hour and Kilometer per Hour helps this conversion stick, along with some frequently asked questions below.

What is Mile per Hour and Kilometer per Hour?

A Mile per Hour (mph) is the imperial speed unit shown on speedometers and road signs in the US and UK.

A Kilometer per Hour (km/h) is the metric speed unit used on speedometers and road signs in most of the world.

Real World Uses of Mile per Hour to Kilometer per Hour Conversion

• Mile per Hour: Commonly used for displaying vehicle speed on speedometers in the US and UK.
• Kilometer per Hour: Commonly used for setting road speed limits outside the US and UK.

Frequently Asked Questions

What is the formula to convert Mile per Hour to Kilometer per Hour?

The formula is: Kilometer per Hour = Mile per Hour x 1.60934271. Multiply any Mile per Hour value by 1.60934271 to get the equivalent in Kilometer per Hour.

What is 1 Mile per Hour in Kilometer per Hour?

1 mph = 1.60934271 km/h.

How many Mile per Hour are in 1 Kilometer per Hour?

1 km/h = 0.621371690309518 mph.

Is Mile per Hour bigger or smaller than Kilometer per Hour?

Mile per Hour is bigger than Kilometer per Hour. 1 Mile per Hour = 1.60934271 km/h.