Kilometers to Miles Converter
Convert kilometers to miles instantly with our accurate conversion tool. Perfect for travel, navigation, and international distance measurements.
Kilometers to Miles Converter
Conversion Formula
To convert kilometers to miles, multiply by 0.62137119:
Quick Reference
Related Conversions
Kilometers to Miles Conversion Guide
The kilometer to mile conversion is essential for international travel, navigation systems, and understanding distances in different countries. This conversion helps bridge metric and imperial distance measurements.
Conversion Formula
To convert kilometers to miles, multiply the kilometer value by 0.621371:
Common Conversions
| Kilometers | Miles |
|---|---|
| 1 km | 0.621371 mi |
| 5 km | 3.10686 mi |
| 10 km | 6.21371 mi |
| 20 km | 12.4274 mi |
| 50 km | 31.0686 mi |
| 100 km | 62.1371 mi |
| 200 km | 124.274 mi |
| 500 km | 310.686 mi |
Practical Examples
- Marathon: 42.2 km equals 26.2 miles
- Speed Limit: 100 km/h equals 62.1 mph
- City Distance: 50 km drive is about 31 miles
- Running: A 5K race is 3.1 miles
When to Use This Conversion
- International travel and navigation
- Sports and athletics (running, cycling)
- Vehicle speedometers and odometers
- Geographic and mapping applications
- Transportation and logistics
- Weather and climate data
Accuracy and Precision
The kilometer is part of the metric system, defined as 1000 meters. The mile has ancient origins, with the modern statute mile defined as exactly 1609.344 meters, giving us the conversion factor of 0.621371 miles per kilometer.
Historical Context
The kilometer is part of the metric system, defined as 1000 meters. The mile has ancient origins, with the modern statute mile defined as exactly 1609.344 meters, giving us the conversion factor of 0.621371 miles per kilometer.
Quick Mental Math Tips
- For rough estimates, multiply km by 0.6 (60% of km value)
- Remember: 8 km ≈ 5 miles (exactly 4.97 miles)
- 100 km ≈ 62 miles
- Use 0.621371 for precise calculations
Frequently Asked Questions
How many miles are in a kilometer?
There are 0.621371 miles in one kilometer.
Is 1 km longer than 1 mile?
No, 1 mile is longer than 1 km. One mile equals 1.609344 kilometers.
How do you convert km to miles quickly?
Multiply kilometers by 0.621371, or use 0.6 for quick estimates.
What's the exact conversion factor?
The exact factor is 0.621371192237334 miles per kilometer, often rounded to 0.621371.