Distance Converter
Convert distances between miles and kilometers
Conversion
Results
Miles
6.21 mi
Kilometers
10.00 km
Distance Tips
1 mile = 1.609 kilometers. Most of the world uses kilometers
Quick Facts
A marathon is 42.195 km or 26.2 miles. A 5K is 3.107 miles
Note
Use this for road distances, running routes, and travel planning
How Distance Converter Works
This converter switches between metric (kilometers) and imperial (miles) distance measurements.
- 1 mile (mi) = 1.609344 kilometers (km)
- 1 kilometer = 0.621371 miles
- Decimal input is supported for precise conversion
- Common for running, driving, and travel distances
Last updated: February 2026
Distance Converter FAQ
Which countries use miles?
Primarily the US, UK, and some Commonwealth countries. Most of the world uses kilometers.
How fast is 100 km/h in mph?
100 km/h = 62.14 mph. A quick rule: multiply km/h by 0.6 for approximate mph.
What about nautical miles?
Nautical miles (1.852 km) are used for sea and air travel. This tool covers land distances.
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