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 m = 1,000,000,000 nm
1 nm = 1.0000e-9 m
例子:
将15 仪表转换为纳米：
15 m = 15,000,000,000 nm
| 仪表 | 纳米 |
|---|---|
| 0.01 m | 10,000,000 nm |
| 0.1 m | 100,000,000 nm |
| 1 m | 1,000,000,000 nm |
| 2 m | 2,000,000,000 nm |
| 3 m | 3,000,000,000 nm |
| 5 m | 5,000,000,000 nm |
| 10 m | 10,000,000,000 nm |
| 20 m | 20,000,000,000 nm |
| 30 m | 30,000,000,000 nm |
| 40 m | 40,000,000,000 nm |
| 50 m | 50,000,000,000 nm |
| 60 m | 60,000,000,000 nm |
| 70 m | 70,000,000,000 nm |
| 80 m | 80,000,000,000 nm |
| 90 m | 90,000,000,000 nm |
| 100 m | 100,000,000,000 nm |
| 250 m | 250,000,000,000 nm |
| 500 m | 500,000,000,000 nm |
| 750 m | 750,000,000,000 nm |
| 1000 m | 1,000,000,000,000 nm |
| 10000 m | 9,999,999,999,999.998 nm |
| 100000 m | 99,999,999,999,999.98 nm |
规则