🚗 Miles to Kilometers
Convert miles to kilometers instantly. Free online miles to km converter with reference table and formula.
Formula: kilometers = miles × 1.60934
Conversion Reference Table
| Unit | Value |
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How to Convert Miles to Kilometers
One mile equals 1.60934 kilometers. To convert miles to kilometers, multiply by 1.60934. A handy approximation is to multiply by 1.6 — this is accurate to within 0.6%. For a rough mental calculation, multiply by 8 and divide by 5.
This conversion is essential for travellers moving between the US/UK and metric countries. US speed limits in mph need to be converted to km/h, and distances on US road signs (in miles) need to be converted to km for metric-system users. Common conversions: 1 mile = 1.609 km, 5 miles = 8.047 km, 10 miles = 16.09 km, 26.2 miles (marathon) = 42.195 km, 100 miles = 160.9 km.
Running and Fitness
Runners often need to convert between miles and kilometers. A 5K race is 3.107 miles. A 10K is 6.214 miles. A half marathon (21.1 km) is 13.1 miles. A full marathon (42.195 km) is 26.219 miles. Our converter is perfect for runners comparing race distances and pace times across different unit systems.