The yard equals 0.9144 meters exactly, or 3 feet. It is the standard field unit in American football (100-yard field) and British cricket (22-yard pitch). Fabric and textile in Anglo-Saxon countries is still sold by the yard. Historically the yard was said to be the length of King Henry I of England's arm.
Real-world: An NFL football field is 100 yards = 91.44 metres. A cricket pitch is 22 yards = 20.12 metres.
Read full yard reference โThe meter is the base SI unit of length. It was first defined in 1793 as one ten-millionth of the distance from the equator to the North Pole through Paris. Today it is defined as the distance light travels in vacuum in 1/299,792,458 of a second โ a definition tied directly to the universal speed of light. The meter is the foundation of the metric system used by 95% of the world.
Real-world: A standard door is about 2 metres tall. An Olympic swimming pool is exactly 50 metres long. The Eiffel Tower is 330 metres tall.
Read full meter reference โ