Example: To convert 5 Femtometer to Kilometer, multiply 5 by 1e-18 to get 5.0000e-18 km (5.0000e-18 km).
| fm | km |
|---|---|
| 1 fm | 1.0000e-18 km (1.0000e-18 km) |
| 2 fm | 2.0000e-18 km (2.0000e-18 km) |
| 3 fm | 3.0000e-18 km (3.0000e-18 km) |
| 4 fm | 4.0000e-18 km (4.0000e-18 km) |
| 5 fm | 5.0000e-18 km (5.0000e-18 km) |
| 6 fm | 6.0000e-18 km (6.0000e-18 km) |
| 7 fm | 7.0000e-18 km (7.0000e-18 km) |
| 8 fm | 8.0000e-18 km (8.0000e-18 km) |
| 9 fm | 9.0000e-18 km (9.0000e-18 km) |
| 10 fm | 1.0000e-17 km (1.0000e-17 km) |
| 11 fm | 1.1000e-17 km (1.1000e-17 km) |
| 12 fm | 1.2000e-17 km (1.2000e-17 km) |
| 13 fm | 1.3000e-17 km (1.3000e-17 km) |
| 14 fm | 1.4000e-17 km (1.4000e-17 km) |
| 15 fm | 1.5000e-17 km (1.5000e-17 km) |