Kilometers (km) to miles (for land and US, UK nautical miles) conversion factors are listed below. To find out how many miles in kilometers, simply multiply by the conversion factor or use the converter if the conversion is into a land mile.
1 Kilometer = 0.621371192 Mile
1 Kilometer = 0.539956803 Mile [US, nautical]
1 Kilometer = 0.539611824 Mile [UK, nautical]
There is 0.621371192 mile in a kilometer. It is because as agreed in 1959, length of one foot is defined as 30.48 centimeters and there are 100 000 (one hundred thousand) cm in a kilometer. If you divide the number of cm in a km (100000) by the numbers of cm in a foot (30.48 cm), that makes 100000 / 30.48 = 3280.84 feet in a km. There are 5280 feet in one mile (1 mile is defined as 8 furlongs, 1 furlong is defined as 220 yards and 1 yard is defined as 3 feet, 8 * 220 * 3 = 5280 ft). If you divide the number of feet in 1 km (3280.84) by the number of feet in 1 mile (5280 ft), that makes 3280.84 / 5280 = 0.621371192 mile in a km.
For example, to calculate how many miles there are in a kilometer and a half, multiply the kilometer value by the conversion factor, 1.5 km * 0.621371192 = 0.93 miles in a kilometer and a half.
Kilometer is a metric length unit and it is mostly used to measure the distance between two geographical locations. There are 1000 meters, 1093.61 yards, 3280.84 feet or 39370.1 inches in 1 kilometer. The abbreviation is "km".
Mile is an imperial and US customary length unit. Similar to the kilometers, it is mostly used to measure the distance between two geographical locations. There are 1609.34 meters, 1760 yards, 5280 feet or 63360 inches in 1 mile. The abbreviation is "mi".