Convert Yard to Kilometer

Please provide values below to convert yard [yd] to kilometer [km], or vice versa.

From:		yard
To:		kilometer

Yard

Definition: A yard (symbol: yd) is a unit of length in both the imperial and US customary systems of measurement. Since 1959, a yard has been defined as exactly 0.9144 meters. It is also equal to 3 feet, or 36 inches.

History/origin: The origin of the yard as a unit is unclear. It is an English unit (predecessor of imperial units) and the term was derived from "gerd" in Old English, the earliest historical form of the English language. Some suggest that the yard could have been derived based on the girth of a person's waist.

Current use: The yard is commonly used in field-length measurement for certain sports such as American and Canadian football, and association football (soccer). The yard is also used in cricket pitch dimensions, and sometimes in golf fairway measurements. In the United Kingdom (UK) as well as the United States, the yard is frequently used when referring to distance. In the UK, it is also a legal requirement that road signs indicating shorter distances are displayed in yards.

Kilometer

Definition: A kilometer (symbol: km) is a unit of length in the International System of Units (SI). One kilometer is equivalent to 0.6214 miles.

History/origin: The prefix kilo- is a metric prefix indicating one thousand. One kilometer is therefore one thousand meters. The origin of the kilometer is linked to that of the meter, and its current definition as the distance traveled by light in 1/299 792 458 second. This definition is subject to change, but the relationship between the meter and the kilometer will remain constant.

Current use: It is currently the official unit of measurement for expressing distances between geographical places on land in most of the world. However, there still remain a number of countries that primarily use the mile instead of the kilometer including the United States and the United Kingdom (UK). Unlike the United States, the UK has adopted the metric system; while the metric system is widely used in government, commerce, and industry, remnants of the imperial system can still be seen in the UK's use of miles in its road systems.

Yard to Kilometer Conversion Table

How to Convert Yard to Kilometer

1 yd = 0.0009144 km
1 km = 1093.6132983377 yd

Example: convert 15 yd to km:
15 yd = 15 × 0.0009144 km = 0.013716 km

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