Conversions

Km to miles

Convert kilometres to miles for speed, distance, and road trip planning.

Enter value

Result

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1 kilometre = 0.621371 miles

Need the reverse? Try miles → kilometres instead →

kilometres to miles — reference table

kilometres (km)	miles (mi)
1km	0.621mi
5km	3.107mi
10km	6.214mi
21km	13.049mi
42km	26.098mi
100km	62.137mi
200km	124.275mi
500km	310.686mi
1,000km	621.373mi

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How to use Km to miles

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 Km to miles.

Is Km to miles free to use?

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

Does Km to miles upload my data to a server?

No. Km to miles 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 Km to miles on my phone or tablet?

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

How accurate are the conversions?

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

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About Km to miles

The kilometre is the standard unit for road distances in most countries outside the United States and the United Kingdom. One kilometre equals approximately 0.621371 miles. Km to Miles conversion is useful when travelling in countries that use metric road signs, calculating running and cycling distances (a half marathon is 21.0975 km / 13.1 miles), following GPS directions that switch units, and comparing international speed limits with US or UK equivalents.