A yard (yd) is a unit of length in the U.S. customary system and imperial systems of measurement. Like many other units of measurement, the definiton of the yard has changed over time. Since 1959, the yard has been standardized to be equal to 0.9144 meters (m), the base unit of length in the International System of Units (SI).
1 yard = 3 feet = 36 inches
1 mile = 1760 yards = 5280 feet = 63360 inches
The survey yard, like the survey foot and inch, is still in use for surveying purposes in the US. This is done for the sake of consistency with significant amounts of data collected based on the definition of the foot prior to its standardization in 1959. While the US chose to continue using the survey foot (and yard and inch) back in 1959, there is a plan in place to start phasing the survey foot out, beginning in 2022.
Yards are usually not used as often as inches and feet in everyday life. In the US, one of the most common ways a person may encounter a yard is in the game of American football, where the yard is used to measure the length of the field.
Did you know?
In ancient times a yard may have been the length of the sash, or gird, worn around the king's waist. King Henry I of England is believed to have decreed a yard to be the distance from the tip of his nose to the end of his thumb.