Miles to kilometers (km) (from land and US, UK nautical miles) conversion factors are listed below. To find out how many kilometers in a mile, multiply by the conversion factor or use the converter if the conversion is from a land mile.
1 Mile = 1.609344 Kilometers
1 Mile [US, nautical] = 1.852000 Kilometers
1 Mile [UK, nautical] = 1.853184 Kilometers
There are 1.609344 kilometers in a mile. It is because as agreed internationally in 1959, length of one foot is defined as 30.48 cm in metric system and there are 5280 feet in 1 mile, that makes 30.48 * 5280 = 160934.4 centimeters in a mile. There are 100 000 (one hundred thousand) cm in one kilometer (1 meter is 100 cm and 1 km is 1000 meters, 100 * 1000 = 100 000 cm in 1 km), then if you divide 160934.4 by 100000, that makes 160934.4 / 100000 = 1.609344 km in a mile.
For example, to calculate how many kilometers there are in a mile and a half, multiply the mile value by the conversion factor, 1.5 mi * 1.609344 = 2.4 kilometers in a mile and a half.
Mile is an imperial and US customary length unit. 1 mile equals to 1760 yards, 5280 feet or 63 360 inches. The abbreviation is "mi".
Nautical mile is a length unit that is used in marine navigation. The nautical mile is calculated based on the circumference of the earth which is 360 degrees. Each degree is 60 minutes and each minute equals to one nautical mile. There are 360 * 60 = 21600 nautical miles and equals to (21600 * 1.852 = ) roughly 40,000 kilometers which is the length of the circumference of the earth. The abbreviations for nautical mile are "nm","NM" or "nmi".
Kilometer is a metric length unit and equals to 1000 meters, 10 hectometers or 100 dekameters. The abbreviation is "km".
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