| 13.9 mm * | 0.1 cm | = 1.39 cm | 
| 1 mm | 
| Units of measurement | Unit of length | 
|---|---|
| Nanometre | 13900000.0 nm | 
| Micrometre | 13900.0 µm | 
| Millimetre | 13.9 mm | 
| Centimetre | 1.39 cm | 
| Inch | 0.5472440945 in | 
| Foot | 0.0456036745 ft | 
| Yard | 0.0152012248 yd | 
| Metre | 0.0139 m | 
| Kilometre | 1.39e-05 km | 
| Mile | 8.6371e-06 mi | 
| Nautical mile | 7.5054e-06 nmi | 
