KM to Miles Converter
Convert kilometres to miles quickly and accurately. Type a distance in kilometres and the equivalent in miles appears instantly.
Your data never leaves your browser. This tool runs entirely on your device.
Formula
To convert kilometres to miles, multiply the value by 0.6213711922.
1 km = 0.6214 mi
miles = kilometres × 0.6213711922
About kilometres and miles
The kilometre is the metric unit of road distance, used for speed limits and signage in almost every country.
The mile survives on road signs in the United States and the United Kingdom, and in running: a marathon is 26.2 miles, and a half marathon 13.1.
Accuracy
One mile is defined as exactly 1.609344 kilometres, fixed by the 1959 international yard and pound agreement. A useful mental shortcut is that kilometres to miles is close to multiplying by 0.6, or dividing by 1.6.
Kilometres to Miles conversion table
| Kilometres | Miles |
|---|---|
| 1 km | 0.6214 mi |
| 5 km | 3.1069 mi |
| 10 km | 6.2137 mi |
| 21.0975 km | 13.1094 mi |
| 42.195 km | 26.2188 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
| 200 km | 124.2742 mi |
| 500 km | 310.6856 mi |
| 1,000 km | 621.3712 mi |
Frequently asked questions
How do you convert kilometres to miles?
Miles = kilometres × 0.6213711922. For example, 1 km equals 0.6214 mi.
How many miles is 5 km?
5 kilometres is 3.1069 miles, usually rounded to 3.1 miles — the classic parkrun distance.
How many miles is a 10 km run?
10 kilometres is 6.2137 miles, or about 6.2 miles.
How long is a marathon in miles?
A marathon is 42.195 kilometres, which converts to 26.2188 miles — the familiar 26.2 miles.
What is the quickest way to estimate km in miles?
Multiply by 0.6, or take the kilometres, halve them, and add a tenth. For 80 km: half is 40, plus 8 gives 48 miles against a true 49.7.
Related tools
- Miles to KMConvert miles to kilometres quickly and accurately. Type a distance in miles and the equivalent in kilometres appears instantly.
- Meters to FeetConvert metres to feet quickly and accurately. Type a length in metres and the equivalent in feet appears instantly.
- KG to LBSConvert kilograms to pounds quickly and accurately. Type a value in kilograms and the equivalent in pounds appears instantly.
- Celsius to FahrenheitConvert Celsius to Fahrenheit quickly and accurately. Type a temperature in °C and the Fahrenheit equivalent appears instantly.