Kilometers to Miles Converter
One Kilometer equals 0.6213711922 Miles (1 km = 0.6213711922 mi). Multiply a Kilometer value by 0.6213711922 to get the equivalent in Miles. Enter your value in the calculator above. The formula and examples below show how to calculate it by hand.
Formula
mi = km × 0.6213711922
Multiply the Kilometer value by 0.6213711922 to get the equivalent value in Miles.
Example Conversions
1 Kilometer (km)
0.6213711922 Mile (mi)
5 Kilometer (km)
3.106855961 Mile (mi)
10 Kilometer (km)
6.213711922 Mile (mi)
25 Kilometer (km)
15.53427981 Mile (mi)
100 Kilometer (km)
62.13711922 Mile (mi)
Conversion Table
| Kilometer (km) | Mile (mi) |
|---|---|
| 0.1 | 0.06213711922 |
| 0.5 | 0.3106855961 |
| 1 | 0.6213711922 |
| 2 | 1.242742384 |
| 5 | 3.106855961 |
| 10 | 6.213711922 |
| 25 | 15.53427981 |
| 50 | 31.06855961 |
| 100 | 62.13711922 |
| 250 | 155.3427981 |
| 500 | 310.6855961 |
| 1000 | 621.3711922 |
How to Convert Manually
Use these steps to convert Kilometer values to Mile without the calculator.
- Write down the value in Kilometer (km) that you want to convert.
- Multiply that value by 0.6213711922.
- For example, 10 Kilometers × 0.6213711922 = 6.213711922 Miles.
- Label the result as Mile (mi).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Kilometer and one Mile.
About Kilometer and Mile
The kilometer is 1,000 meters, the standard unit for road distances, maps, and geography in most of the world. Road signs, running races, and vehicle odometers outside the US and UK all use it. The mile is defined as exactly 1,609.344 meters (5,280 feet) under the 1959 international yard and pound agreement. It remains the road-distance unit of the US and UK. One Kilometer equals 0.6213711922 Miles (1 km = 0.6213711922 mi). Kilometer is used in road distances and signage outside the US and in running and cycling race distances. Mile is used in US and UK road distances and speed limits.
Precision and Rounding:Length factors between metric and imperial units are exact by definition (1 ft = 0.3048 m since 1959), so any rounding error comes from display precision, not the factor. Two or three decimal places suit carpentry and DIY work; machining and surveying often require four or more.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15Kilometers equals9.320567884Miles.
15 km × 0.6213711922 = 9.320567884 mi
FAQ
How do I convert Kilometer to Mile?
Multiply the Kilometer value by 0.6213711922 to get the equivalent value in Miles.
What is the formula for Kilometer to Mile?
The formula is mi = km × 0.6213711922.
How many Miles are in 1 Kilometer?
1 Kilometer equals 0.6213711922 Miles.
Can I convert Mile back to Kilometer?
Yes. 1 Mile equals 1.609344 Kilometers, and the related converter can reverse the calculation.
What are common names for Kilometer and Mile?
Kilometer is shown as km and may also be searched as kilometre, kilometers, kilometres. Mile is shown as mi and may also be searched as miles.
Was this page helpful?
Let us know if this converter met your needs.