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 = 9.8769e-18 pc
1 pc = 101,246,719,160,104,980 ft
例子:
将15 脚转换为parsec：
15 ft = 1.4815e-16 pc
| 脚 | parsec |
|---|---|
| 0.01 ft | 9.8769e-20 pc |
| 0.1 ft | 9.8769e-19 pc |
| 1 ft | 9.8769e-18 pc |
| 2 ft | 1.9754e-17 pc |
| 3 ft | 2.9631e-17 pc |
| 5 ft | 4.9384e-17 pc |
| 10 ft | 9.8769e-17 pc |
| 20 ft | 1.9754e-16 pc |
| 30 ft | 2.9631e-16 pc |
| 40 ft | 3.9507e-16 pc |
| 50 ft | 4.9384e-16 pc |
| 60 ft | 5.9261e-16 pc |
| 70 ft | 6.9138e-16 pc |
| 80 ft | 7.9015e-16 pc |
| 90 ft | 8.8892e-16 pc |
| 100 ft | 9.8769e-16 pc |
| 250 ft | 2.4692e-15 pc |
| 500 ft | 4.9384e-15 pc |
| 750 ft | 7.4076e-15 pc |
| 1000 ft | 9.8769e-15 pc |
| 10000 ft | 9.8769e-14 pc |
| 100000 ft | 9.8769e-13 pc |
规则