Conversor de Millas y Kilómetros

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Reference distances

Well-known distances to put your conversions in context

5 km

3.1 mi

5K race

Popular race

21.0975 km

13.1 mi

Half marathon

42.195 km

26.2 mi

Marathon

Olympic

180 km

112 mi

Cycling stage

Typical Tour stage

620 km

385 mi

Madrid to Barcelona

By highway

40,075 km

24,901 mi

Around the Earth

Earth's equator

Distance	Kilometers (km)	Miles (mi)	Reference
5K race	5	3.1	Popular running distance
10K race	10	6.2	Long-distance race
Half marathon	21.0975	13.1	Half marathon
Olympic marathon	42.195	26.2	Classic Olympic distance
Madrid to Barcelona	~620	~385	By highway AP-2
Spain to US (New York)	~6,850	~4,257	Transatlantic flight
Earth's circumference	40,075	24,901	Equatorial circumference

km = miles × 1.60934

miles = km ÷ 1.60934

Mile (mi): an imperial unit. 1 mile = 1,609.34 m. Used in the US, UK, and in aviation (nautical mile = 1,852 m).

Kilometer (km): an SI unit. 1 km = 1,000 m. The international standard for long distances.

Rule of 1.6: km ≈ miles × 1.6. To convert miles to km, add 60% of the miles.
Speed: 60 mph ≈ 97 km/h (approximately 100 km/h).
Marathon: 26.2 miles = 42.195 km. Never varies in official competition.