mm, cm, m, km, in, ft, yd, mi.
Converts between meters, feet, inches, kilometers, miles, yards, and centimeters. Base conversion factors: 1 m = 3.28084 ft; 1 mi = 1.60934 km.
Covers most everyday length units in a single tool.
Yards specifically remain common in a narrow set of contexts — American football fields, fabric shopping, and some UK road signage — even in countries that otherwise use metric for nearly everything else.
1 meter = 3.28084 feet.
Nautical mile = 1,852 m (~1.15 statute miles). Used in aviation and shipping.
Rare historical units: 1 furlong = 660 ft = 220 yd; 1 rod = 16.5 ft. Kept for horse racing distances.
None — the statute mile (1,609.34 m) is standardized identically in both countries; only the nautical mile, used at sea, is a different, longer unit.