Conversion
Miles to KM Converter
Convert between miles and kilometers instantly. Also includes a speed converter for mph to km/h.
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Speed
mph
km/h
Enter a value in either field to convert
Reference Table (1–50 miles)
| Miles | KM | Miles | KM |
|---|
How is this calculated?
Miles to Kilometers:
km = miles × 1.60934
Kilometers to Miles:
miles = km × 0.621371
Speed conversion:
km/h = mph × 1.60934
mph = km/h × 0.621371
Example:
26.2 miles × 1.60934 = 42.16 km (marathon)
60 mph × 1.60934 = 96.56 km/hFAQ
Frequently asked questions about miles to km
How many km is 1 mile?
1 mile equals exactly 1.60934 kilometers. This is derived from the international yard (0.9144 meters). To convert miles to km, multiply by 1.60934.
How do I convert miles to km?
Multiply miles by 1.60934. For example, 10 miles × 1.60934 = 16.09 km. A quick mental trick: multiply by 8 and divide by 5 (10 × 8 ÷ 5 = 16).
How do I convert km to miles?
Divide km by 1.60934 or multiply by 0.621371. For example, 10 km × 0.621371 = 6.21 miles. Quick trick: multiply by 5 and divide by 8.
How do I convert mph to km/h?
Multiply mph by 1.60934 to get km/h. For example, 60 mph = 96.56 km/h. To convert km/h to mph, multiply by 0.621371 (100 km/h = 62.14 mph).
How far is a marathon in km?
A marathon is 26.2 miles or 42.195 km (exact). A half marathon is 13.1 miles or 21.0975 km. The distance was standardized at the 1908 London Olympics.
Which countries use miles instead of km?
The United States, United Kingdom, and a few territories (Myanmar, Liberia) use miles for road distances. The UK uses miles on road signs but km in many other contexts. All other countries use kilometers.