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 yd = 914.4 mm
1 mm = 0.001 yd
例子:
将15 院子转换为毫米：
15 yd = 13,716 mm
| 院子 | 毫米 |
|---|---|
| 0.01 yd | 9.144 mm |
| 0.1 yd | 91.44 mm |
| 1 yd | 914.4 mm |
| 2 yd | 1,828.8 mm |
| 3 yd | 2,743.2 mm |
| 5 yd | 4,572 mm |
| 10 yd | 9,144 mm |
| 20 yd | 18,288 mm |
| 30 yd | 27,432 mm |
| 40 yd | 36,576 mm |
| 50 yd | 45,720 mm |
| 60 yd | 54,864 mm |
| 70 yd | 64,008 mm |
| 80 yd | 73,152 mm |
| 90 yd | 82,296 mm |
| 100 yd | 91,440 mm |
| 250 yd | 228,600 mm |
| 500 yd | 457,200 mm |
| 750 yd | 685,800 mm |
| 1000 yd | 914,400 mm |
| 10000 yd | 9,144,000 mm |
| 100000 yd | 91,440,000 mm |
规则