长度是一个基本的物理量，可测量两个点之间的距离。它是国际单元（SI）中的七个基本单元之一，仪表（m）是其基本单元。
1 ft = 0.333 yd
1 yd = 3 ft
例子:
将15 脚转换为院子：
15 ft = 5 yd
| 脚 | 院子 |
|---|---|
| 0.01 ft | 0.003 yd |
| 0.1 ft | 0.033 yd |
| 1 ft | 0.333 yd |
| 2 ft | 0.667 yd |
| 3 ft | 1 yd |
| 5 ft | 1.667 yd |
| 10 ft | 3.333 yd |
| 20 ft | 6.667 yd |
| 30 ft | 10 yd |
| 40 ft | 13.333 yd |
| 50 ft | 16.667 yd |
| 60 ft | 20 yd |
| 70 ft | 23.333 yd |
| 80 ft | 26.667 yd |
| 90 ft | 30 yd |
| 100 ft | 33.333 yd |
| 250 ft | 83.333 yd |
| 500 ft | 166.667 yd |
| 750 ft | 250 yd |
| 1000 ft | 333.333 yd |
| 10000 ft | 3,333.333 yd |
| 100000 ft | 33,333.333 yd |
规则