Kilometer ⇄ Mile Converter
Effortlessly convert distances between kilometers (km) and miles (mi) with our precise online tool. Whether you're planning a road trip, tracking your run, or working with international measurements, get instant and accurate two-way conversions.
Convert Distance: Kilometers & Miles
Conversion Factors Used:
| 1 kilometer (km) | ≈ | 0.62137119 miles (mi) |
| 1 mile (mi) | ≈ | 1.609344 kilometers (km) |
How to Use the Kilometer ⇄ Mile Converter
- Enter Your Distance:
- To convert from kilometers to miles, type the distance in kilometers into the "Kilometers (km)" input box.
- To convert from miles to kilometers, type the distance in miles into the "Miles (mi)" input box.
- View Instant Conversion: As you type a value in one field, the converted distance will automatically update in the other field.
- Accuracy: The converter uses precise, standard conversion factors. Results are typically shown with several decimal places for accuracy, which you can round as needed for your purpose.
If you enter a non-numeric or negative value, an error message will guide you to correct the input.
About Kilometers (km) and Miles (mi)
Kilometer (km): The kilometer is a unit of length in the metric system, equal to one thousand meters. It is the most common unit for expressing distances between geographical places on land in most of the world.
Mile (mi): The mile (specifically the international mile or statute mile) is an English unit of length equal to 5,280 feet, or 1,760 yards, and standardised as exactly 1,609.344 meters. It is commonly used in countries like the United States and the United Kingdom for road distances.
Being able to convert between kilometers and miles is useful for:
- Travel Planning: Understanding distances when traveling to countries that use a different system of measurement.
- Fitness Activities: Converting running, cycling, or walking distances (e.g., a 5K run is 3.1 miles).
- Mapping & Navigation: Interpreting maps or GPS data that might use either unit.
- International Communication: Discussing distances with people from different parts of the world.
- Education & Science: Working with data or problems that involve both metric and imperial units.
Frequently Asked Questions (FAQ)
What is the exact conversion factor from kilometers to miles?
1 kilometer is approximately equal to 0.6213711922 miles. Our calculator uses a highly precise factor for accurate conversions.
What is the exact conversion factor from miles to kilometers?
1 international mile is exactly equal to 1.609344 kilometers.
How many decimal places are the results displayed to?
The results are typically displayed with up to five decimal places to provide a good degree of precision. You can round this as needed for your specific application.
Does this converter work for other length units like meters or yards?
This specific tool is designed for direct conversion between kilometers and miles only. For conversions involving other units of length (like meters, yards, feet, inches), you would need a more comprehensive length/distance converter tool or perform intermediate calculations.