| 1 fm = 0.0000000000001 cm |
| 2 fm = 0.0000000000002 cm |
| 3 fm = 0.0000000000003 cm |
| 4 fm = 0.0000000000004 cm |
| 5 fm = 0.0000000000005 cm |
| 6 fm = 0.0000000000006 cm |
| 7 fm = 0.0000000000007 cm |
| 8 fm = 0.0000000000008 cm |
| 9 fm = 0.0000000000009 cm |
| 10 fm = 0.000000000001 cm |
| 15 fm = 0.0000000000015 cm |
| 50 fm = 0.000000000005 cm |
| 100 fm = 0.00000000001 cm |
| 500 fm = 0.00000000005 cm |
| 1000 fm = 0.0000000001 cm |
| 5000 fm = 0.0000000005 cm |
| 10000 fm = 0.000000001 cm |