| 31.2 mm * | 0.0393700787 in | = 1.2283464567 in | 
| 1 mm | 
| Fyzikálna jednotka | Dĺžka | 
|---|---|
| Nanometer | 31200000.0 nm | 
| Mikrometer | 31200.0 µm | 
| Milimeter | 31.2 mm | 
| Centimeter | 3.12 cm | 
| Palec | 1.2283464567 in | 
| Stopa | 0.1023622047 ft | 
| Yard | 0.0341207349 yd | 
| Meter | 0.0312 m | 
| Kilometer | 3.12e-05 km | 
| Míľa | 1.93868e-05 mi | 
| Námorná míľa | 1.68467e-05 nmi | 
