KM ↔ Miles Converter
Convert kilometers to miles and miles to kilometers instantly
Miles to KM: Kilometers = Miles × 1.60934
1 mile = 1.609344 kilometers (exact conversion)
| Amount | Mile |
|---|---|
| 1 km | 0.62137119 mi |
| 2 km | 1.2427424 mi |
| 5 km | 3.106856 mi |
| 10 km | 6.2137119 mi |
| 25 km | 15.53428 mi |
| 50 km | 31.06856 mi |
| 100 km | 62.137119 mi |
| 500 km | 310.6856 mi |
| 1,000 km | 621.37119 mi |
More Length Unit Converters
Explore more length conversions, including meters, feet, inches, centimeters, kilometers and miles, for fast, accurate results every time.
KM to Miles Converter: Kilometers to Miles and Back
The KM to Miles Converter is a free online tool that converts distance between kilometers and miles instantly, in both directions. It also provides formulas and worked examples so you can understand the manual conversion, and it works as you type or move the slider. It is made for travel, running, education, construction and engineering, wherever both metric and imperial units are used.
Quick answer: 1 kilometer is 0.621371 miles, so 10 km is 6.21 miles and 100 km is 62.14 miles. To convert miles to kilometers, multiply by 1.609344, so 5 miles is 8.05 km.
What Is a Kilometer?
A kilometer (KM) is a metric unit of distance equal to 1,000 meters. It is widely used worldwide in science, education, travel, construction and engineering for measuring long distances, and it is commonly used where both metric and imperial measurement systems are required.
What Is a Mile?
A mile is a unit of distance in the imperial and US customary systems, commonly used in the United States and the United Kingdom. One mile is 5,280 feet, or exactly 1.609344 kilometers. Miles are frequently used for travel, road distances, construction and engineering where conversion between measurement systems is necessary.
KM to Miles Formula
Examples: 1 KM = 1 × 0.621371 = 0.621371 miles. 5 KM = 5 × 0.621371 = 3.106855 miles. 10 KM = 10 × 0.621371 = 6.21371 miles.
Miles to KM Formula
Examples: 1 mile = 1 × 1.60934 = 1.60934 KM. 3 miles = 3 × 1.60934 = 4.82802 KM. 5 miles = 5 × 1.60934 = 8.0467 KM.
KM to Miles Chart
These values use the exact factor of 1.609344 km per mile, so they match the converter above:
| Kilometers | Miles |
|---|---|
| 1 km | 0.621 mi |
| 2 km | 1.243 mi |
| 3 km | 1.864 mi |
| 5 km | 3.107 mi |
| 10 km | 6.214 mi |
| 15 km | 9.321 mi |
| 20 km | 12.427 mi |
| 25 km | 15.534 mi |
| 50 km | 31.069 mi |
| 100 km | 62.137 mi |
| 200 km | 124.274 mi |
| 500 km | 310.686 mi |
| Miles | Kilometers |
|---|---|
| 1 mi | 1.609 km |
| 2 mi | 3.219 km |
| 3 mi | 4.828 km |
| 5 mi | 8.047 km |
| 10 mi | 16.093 km |
| 15 mi | 24.14 km |
| 20 mi | 32.187 km |
| 26.2 mi | 42.165 km |
| 50 mi | 80.467 km |
| 60 mi | 96.561 km |
| 100 mi | 160.934 km |
| 500 mi | 804.672 km |
Race Distances and Speed Limits
Running events are measured in kilometers almost everywhere, while many runners think in miles. Road limits switch units too, so these common values are handy:
| Event | Kilometers | Miles |
|---|---|---|
| 5K run | 5 km | 3.11 mi |
| 10K run | 10 km | 6.21 mi |
| Half marathon | 21.0975 km | 13.11 mi |
| Marathon | 42.195 km | 26.22 mi |
| Typical highway limit | 100 km/h | 62.1 mph |
| US interstate limit | 65 mph | 104.6 km/h |
To work out your pace per kilometer or per mile, use the pace calculator, and for speeds in km/h and mph see the speed converter. The length converter and the unit converter cover every other distance unit.
Who Can Use This Converter?
Students, teachers, engineers, architects, travelers, builders and surveyors can use it, as well as anyone who works with metric or imperial distance measurements.
How to Use the KM to Miles Converter
Enter the distance
Type the distance in the input box, or move the slider, or tap a quick card such as a 5K or a marathon.
Choose the conversion
Select KM to Miles or Miles to KM, or press the swap button to reverse the direction.
Read the result
The result is displayed instantly, along with the distance in other units.
Use the value
Use the converted value for travel, construction, education or engineering, and check the formula box under the tool if you need the rule.