Miles to Kilometers
Convert miles to kilometers instantly. Free miles to km calculator with reference table for running, driving, and travel distances.
One mile equals exactly 1.60934 kilometers. The mile originated from the Roman mille passuum (a thousand paces), standardized in England during the 16th century. Today, only the US, UK (on road signs), and a handful of other territories primarily use miles for road distances. Converting running distances: a 1-mile run is 1.609 km; a half-marathon is 13.1 miles (21.08 km). Long-distance flight routes are tracked in nautical miles for navigation but displayed in statute miles or kilometers for passengers. Automotive speed ratings and endurance records for cars are often stated in miles (e.g., 100,000-mile warranty = 160,934 km). Trail running and hiking in the US uses miles; international trail standards use kilometers.
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Free Online Unit Converter
Zolkit's unit converter supports 7 categories covering dozens of the most common conversions — length, weight, temperature, volume, area, speed, and torque. Pick a category, select your units from the dropdowns, type a value, and see the result instantly. A swap button reverses the conversion direction with one click. Your last-used category and units are remembered locally so the converter is ready when you return.
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Choose a unit category from the tab bar at the top: Length, Weight, Temperature, Volume, Area, Speed, or Other.
- 2
Select the unit you're converting from and the unit you're converting to using the dropdowns. Type your value and the result appears instantly.
- 3
Click the swap button (↔) to reverse the conversion direction, or click Copy to save the result to your clipboard.