Convert Kilometers to Miles

Enter the length in kilometers below to get the value converted to miles.

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1 km = 0.621371 mi
Do you want to convert miles to kilometers?

How to Convert Kilometers to Miles

conversion scale showing kilometers and equivalent miles length values

To convert a kilometer measurement to a mile measurement, multiply the length by the conversion ratio. One kilometer is equal to 0.621371 miles, so use this simple formula to convert:

miles = kilometers × 0.621371

The length in miles is equal to the kilometers multiplied by 0.621371.

For example, here's how to convert 5 kilometers to miles using the formula above.
5 km = (5 × 0.621371) = 3.106856 mi

Kilometers and miles are both units used to measure length. Keep reading to learn more about each unit of measure.

Kilometers

One kilometer is equal to 1,000 meters, which are defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval.

The kilometer, or kilometre, is a multiple of the meter, which is the SI base unit for length. In the metric system, "kilo" is the prefix for 103. Kilometers can be abbreviated as km, for example 1 kilometer can be written as 1 km.

Miles

The mile is a linear measurement of length equal to exactly 1,609.344 meters. One mile is also equal to 5,280 feet or 1,760 yards.

The mile is a US customary and imperial unit of length. Miles can be abbreviated as mi, and are also sometimes abbreviated as m. For example, 1 mile can be written as 1 mi or 1 m.

We recommend using a ruler or tape measure for measuring length, which can be found at a local retailer or home center. Rulers are available in imperial, metric, or combination with both values, so make sure you get the correct type for your needs.

If you need a ruler you can also download and print our free printable rulers, which include both imperial and metric measurements.

Kilometer Measurements and Equivalent Mile Conversions

Common kilometer values converted to the equivalent mile value
Kilometers Miles
1 km 0.621371 mi
2 km 1.2427 mi
3 km 1.8641 mi
4 km 2.4855 mi
5 km 3.1069 mi
6 km 3.7282 mi
7 km 4.3496 mi
8 km 4.971 mi
9 km 5.5923 mi
10 km 6.2137 mi
11 km 6.8351 mi
12 km 7.4565 mi
13 km 8.0778 mi
14 km 8.6992 mi
15 km 9.3206 mi
16 km 9.9419 mi
17 km 10.56 mi
18 km 11.18 mi
19 km 11.81 mi
20 km 12.43 mi
21 km 13.05 mi
22 km 13.67 mi
23 km 14.29 mi
24 km 14.91 mi
25 km 15.53 mi
26 km 16.16 mi
27 km 16.78 mi
28 km 17.4 mi
29 km 18.02 mi
30 km 18.64 mi
31 km 19.26 mi
32 km 19.88 mi
33 km 20.51 mi
34 km 21.13 mi
35 km 21.75 mi
36 km 22.37 mi
37 km 22.99 mi
38 km 23.61 mi
39 km 24.23 mi
40 km 24.85 mi

More Kilometer Length Conversions

US Customary & Imperial Units
Convert to Yards
1 km is equal to 1,093.61 yards
Convert to Feet
1 km is equal to 3,280.84 feet
Convert to Inches
1 km is equal to 39,370.1 inches
SI Units
Convert to Meters
1 km is equal to 1,000 meters
Convert to Centimeters
1 km is equal to 100,000 centimeters
Convert to Millimeters
1 km is equal to 1,000,000 millimeters
Convert to Micrometers
1 km is equal to 1,000,000,000 micrometers
Convert to Nanometers
1 km is equal to 1,000,000,000,000 nanometers