Convert feet to yards
脚
定义
A foot (ft) is a traditional length unit in the Imperial and U.S. customary systems. Since 1959, it’s been precisely defined as 0.3048 meters. Each foot contains 12 inches and forms one-third of a yard.
历史与起源
Across ancient and medieval cultures—from Greek and Roman to English and Chinese—the “foot” varied in length (roughly 250 mm to 335 mm), often based on human anatomy. To unify these diverse measures, an international agreement in 1959 fixed the foot at exactly 0.3048 m.
当前用途
Feet remain the everyday standard in the United States, Canada, and the United Kingdom. You’ll encounter them when measuring personal height, room dimensions, sports fields, and aviation altitudes.
庭院
定义
A yard (yd) is an Imperial and U.S. customary unit equal to exactly 0.9144 meters. One yard comprises 3 feet or 36 inches.
历史与起源
The exact origins of the yard are unclear, though its name likely stems from the Old English 痛风 (“rod” or “measure”). Prior to 1959, regional yards varied; the same international accord that standardized the foot also set the yard at 0.9144 m.
当前用途
Yards are widely used for sports field layouts (e.g., football, soccer, cricket) and for short-distance signage in the U.K. and U.S. In Britain, road signs for distances under a mile still display yards by law.
Foot → Yard Conversion Table
英尺 (ft) | 码数(码) |
---|---|
0.01 | 0.0033333333 |
0.1 | 0.0333333333 |
1 | 0.3333333333 |
2 | 0.6666666667 |
3 | 1 |
5 | 1.6666666667 |
10 | 3.3333333333 |
20 | 6.6666666667 |
50 | 16.6666666667 |
100 | 33.3333333333 |
1000 | 333.3333333333 |
如何转换
1 ft = 0.3333333333 yd
1 yd = 3 ft
示例
To convert 15 ft to yards:
15 ft × 0.3333333333 yd/ft = 5 yd