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Kilometer or kilometre is one of the most common metric units of length or distance. It is equal to 1 000 meters. It is about 0.62137119 mile, 1093.6133 yards, or 3280.8399 feet. Plural name is kilometers.
The yard (abbreviation: yd) is an English unit of length, in both the British imperial and US customary systems of measurement, that comprises 3 feet or 36 inches.