| 1 fm = 0.000000000001 mm | 
| 2 fm = 0.000000000002 mm | 
| 3 fm = 0.000000000003 mm | 
| 4 fm = 0.000000000004 mm | 
| 5 fm = 0.000000000005 mm | 
| 6 fm = 0.000000000006 mm | 
| 7 fm = 0.000000000007 mm | 
| 8 fm = 0.000000000008 mm | 
| 9 fm = 0.000000000009 mm | 
| 10 fm = 0.00000000001 mm | 
| 15 fm = 0.000000000015 mm | 
| 50 fm = 0.00000000005 mm | 
| 100 fm = 0.0000000001 mm | 
| 500 fm = 0.0000000005 mm | 
| 1000 fm = 0.000000001 mm | 
| 5000 fm = 0.000000005 mm | 
| 10000 fm = 0.00000001 mm |