KM to Miles Converter
Free kilometres to miles converter — type any km value and instantly see the result in miles, metres, feet, and yards. No signup required.
About KM to Miles Converter
The KM to Miles Converter gives you an instant miles result the moment you start typing — no button press required. Enter any value in kilometres, including decimals, and the tool immediately displays the equivalent in miles as the primary result, with metres, feet, and yards shown as secondary conversions. A copy button lets you grab the miles value straight to your clipboard.
The conversion is exact. One mile is defined as exactly 1.609344 kilometres, so to convert kilometres to miles you divide by 1.609344. Conversely, one kilometre is approximately 0.621371 miles. There is no rounding in the underlying math — just a clean division.
The km-to-miles conversion is one of the most common in everyday life. Most of the world uses kilometres for road distance and travel, while the United States uses miles. So when an American reads a European road sign, plans a trip in metric data, or watches international athletics coverage, this conversion bridges the gap. A 5K race becomes 3.107 miles. A 100 km drive becomes 62.137 miles. A marathon (42.195 km) becomes 26.219 miles.
The same conversion factor applies to speed. 100 km/h equals 62.137 mph. 80 km/h is about 49.7 mph. 130 km/h — a typical European motorway limit — is about 80.8 mph. So while this tool converts distance, the conversion factor is the same when you are converting speed in km/h to mph.
This tool also displays metres, feet, and yards alongside the miles result so you can read the answer in any unit you need without running a second conversion. Free, private, and runs entirely in your browser without an account or signup.
Frequently asked questions
One kilometre equals approximately 0.621371 miles. Conversely, one mile is exactly 1.609344 kilometres. To convert km to miles, divide your kilometre value by 1.609344 — or equivalently multiply by 0.621371.
A useful approximation: divide your km value by 1.6, or multiply by 0.62. So 100 km is roughly 62 miles, and 50 km is about 31 miles. For exact conversion, this tool divides by 1.609344 — the precise definition. The tool gives you the exact answer instantly.
A 5K race is 5 kilometres, which equals approximately 3.107 miles. A 10K is about 6.214 miles, a half-marathon (21.0975 km) is 13.109 miles, and a full marathon (42.195 km) is 26.219 miles.
100 km/h equals approximately 62.137 mph. Other common speed conversions: 80 km/h is about 49.7 mph, 110 km/h is about 68.4 mph, and 130 km/h is about 80.8 mph. This tool converts the distance value — for speeds, use the same factor.