| 31 km * | 0.6213711922 mi | = 19.2625069594 mi |
| 1 km |
| Natuurkundige eenheid | Lengte-eenheid |
|---|---|
| Nanometer | 3.1e+13 nm |
| Micrometer | 31000000000.0 µm |
| Millimeter | 31000000.0 mm |
| Centimeter | 3100000.0 cm |
| Inch | 1220472.44094 in |
| Voet | 101706.036745 ft |
| Yard | 33902.0122485 yd |
| Meter | 31000.0 m |
| Kilometer | 31.0 km |
| Mijl | 19.2625069594 mi |
| Zeemijl | 16.7386609071 nmi |
