Conversions

Mph to kph

Convert miles per hour to kilometres per hour instantly. Includes a reference table for common speeds.

Enter value

Result

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1 mph = 1.60934 km/h

Need the reverse? Try kilometres per hour → miles per hour instead →

miles per hour to kilometres per hour — reference table

miles per hour (mph)	kilometres per hour (kph)
10mph	16.09kph
20mph	32.19kph
30mph	48.28kph
40mph	64.37kph
50mph	80.47kph
60mph	96.56kph
70mph	112.65kph
80mph	128.75kph
100mph	160.93kph

100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Mph to kph

01 Enter the value you want to convert in the input field
02 The converted result appears instantly
03 Scroll down for a quick-reference table of common values

Frequently asked questions

Common questions about Mph to kph.

Is Mph to kph free to use?

Yes, Mph to kph is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Mph to kph upload my data to a server?

No. Mph to kph runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Mph to kph on my phone or tablet?

Yes. Mph to kph is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

How accurate are the conversions?

Mph to kph uses standard mathematical conversion formulas and displays results to up to 8 decimal places of precision.

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About Mph to kph

Miles per hour (mph) is the primary speed unit used on road signs, vehicle speedometers, and weather reports in the United States and the United Kingdom. Kilometres per hour (km/h or kph) is the standard in most other countries. The exact conversion factor is 1 mph = 1.60934 km/h. Mph to Kph conversion is useful when travelling internationally and comparing unfamiliar speed limits, understanding US and UK wind speed forecasts in a metric context, comparing vehicle top speeds listed in different markets, and converting race pace data between imperial and metric formats.