| 31.7 mm * | 0.1 cm | = 3.17 cm | 
| 1 mm | 
| Units of measurement | Lengths | 
|---|---|
| Nanometre | 31700000.0 nm | 
| Micrometre | 31700.0 µm | 
| Millimetre | 31.7 mm | 
| Centimetre | 3.17 cm | 
| Inch | 1.2480314961 in | 
| Foot | 0.1040026247 ft | 
| Yard | 0.0346675416 yd | 
| Metre | 0.0317 m | 
| Kilometre | 3.17e-05 km | 
| Mile | 1.96975e-05 mi | 
| Nautical mile | 1.71166e-05 nmi | 
