Kilometers to Miles Calculator
Enter the length in kilometers (km) below to convert it to miles (mi):
Understanding Kilometers to Miles Conversion
The kilometer (km) is a metric unit, while the mile (mi) is commonly used in the imperial system. To convert kilometers to miles, use the formula:
Formula: Miles = Kilometers × 0.621371
For example, 5 kilometers equals 3.11 miles (5 × 0.621371).
Why Convert Kilometers to Miles?
Common reasons for converting km to miles include:
- Travel & Navigation: Understanding road distances in countries that use miles.
- Sports & Athletics: Measuring running or cycling distances.
- Aviation & Maritime: Converting distances for flight plans and sea routes.
- Education: Applying conversions in physics and geography.
Common Mistakes When Converting km to mi
- Using the wrong conversion factor: Always multiply by 0.621371 for accuracy.
- Rounding too early: Keep at least four decimal places for precise results.
- Confusing miles with nautical miles: Standard miles and nautical miles differ in length.
Frequently Asked Questions
How many miles are in 10 kilometers?
10 kilometers is equal to 6.21 miles.
Is this tool accurate for professional use?
Yes, it provides precise metric-to-imperial conversions for professional and academic purposes.
Can I enter negative values?
No, distances must always be positive values.