| 3100 cm * | 0.01 m | = 31.0 m | 
| 1 cm | 
| Units of measurement | Unit of length | 
|---|---|
| Nanometre | 31000000000.0 nm | 
| Micrometre | 31000000.0 µm | 
| Millimetre | 31000.0 mm | 
| Centimetre | 3100.0 cm | 
| Inch | 1220.47244094 in | 
| Foot | 101.706036745 ft | 
| Yard | 33.9020122485 yd | 
| Metre | 31.0 m | 
| Kilometre | 0.031 km | 
| Mile | 0.019262507 mi | 
| Nautical mile | 0.0167386609 nmi | 
