Kilometers to Miles Calculator
Convert between kilometers and miles with precision. Perfect for distance, speed, and travel calculations.
Distance Converter
Common Kilometer to Mile Conversions
| Kilometers | Miles | Usage |
|---|---|---|
| 1 | 0.621 | Basic conversion |
| 5 | 3.107 | Short run |
| 10 | 6.214 | 10K race |
| 21.1 | 13.110 | Half marathon |
| 42.195 | 26.219 | Marathon |
| 100 | 62.137 | Ultra distance |
Speed Conversions (KM/H to MPH)
| KM/H | MPH | Context |
|---|---|---|
| 50 | 31.1 | City speed limit |
| 80 | 49.7 | Highway speed |
| 100 | 62.1 | Autobahn speed |
| 120 | 74.6 | High speed limit |
| 130 | 80.8 | Autobahn limit |
Quick Reference
Kilometer
1 km = 0.621371 mi
Metric unit
Mile
1 mi = 1.609344 km
Imperial/US unit
Distance Relationships
Usage Tips
Kilometers are used globally (metric system)
Miles are used in the US, UK, and some Commonwealth countries
Perfect for international travel and navigation
Remember: miles are longer than kilometers
Understanding Kilometer to Mile Conversions
What is a Kilometer?
A kilometer is a unit of length in the metric system, equal to 1,000 meters. It's the standard unit for measuring longer distances in most countries worldwide and is used in scientific applications globally.
Kilometer Usage
- •Road distances in most countries
- •Running and racing distances (5K, 10K, marathon)
- •Scientific and international measurements
- •Speed measurements (km/h)
Marathon Example
A marathon is exactly 42.195 kilometers long. Using our conversion formula: 42.195 km × 0.621371 = 26.219 miles (rounded to 26.2 miles).
Exact Conversion Factors
Kilometers to Miles:
miles = km × 0.621371192
Miles to Kilometers:
km = miles × 1.609344
Practical Applications
International Travel
Converting distances when traveling from metric to imperial countries
Sports & Fitness
Understanding race distances and training programs globally
Scientific Research
Converting measurements for international collaboration
Memory Tip
Remember: "A kilometer is about 5/8 of a mile" or "multiply kilometers by 0.6 for a quick estimate of miles"