Metric vs Imperial Length
The metric system (metres, kilometres) is used in most countries and all scientific contexts. The imperial system (feet, miles) is primarily used in the United States and, for some measurements, the United Kingdom.
Convert length and distance between 10 units instantly.
1 m
3,281
ft
Millimetre (mm)
1.000
Centimetre (cm)
100
Kilometre (km)
0,001
Inch (in)
39,37
Foot (ft)
3,281
Yard (yd)
1,094
Mile (mi)
6.214e-4
Nautical mile
5.400e-4
Light year (ly)
1.057e-16
The metric system (metres, kilometres) is used in most countries and all scientific contexts. The imperial system (feet, miles) is primarily used in the United States and, for some measurements, the United Kingdom.