| 31.3 mm * | 0.0393700787 in | = 1.2322834646 in | 
| 1 mm | 
| Natuurkundige eenheid | Lengte | 
|---|---|
| Nanometer | 31300000.0 nm | 
| Micrometer | 31300.0 µm | 
| Millimeter | 31.3 mm | 
| Centimeter | 3.13 cm | 
| Inch | 1.2322834646 in | 
| Voet | 0.1026902887 ft | 
| Yard | 0.0342300962 yd | 
| Meter | 0.0313 m | 
| Kilometer | 3.13e-05 km | 
| Mijl | 1.94489e-05 mi | 
| Zeemijl | 1.69006e-05 nmi | 
