| 5.1 km * | 0.6213711922 mi | = 3.1689930804 mi | 
| 1 km | 
| Natuurkundige eenheid | Lengtes | 
|---|---|
| Nanometer | 5.1e+12 nm | 
| Micrometer | 5100000000.0 µm | 
| Millimeter | 5100000.0 mm | 
| Centimeter | 510000.0 cm | 
| Inch | 200787.401575 in | 
| Voet | 16732.2834646 ft | 
| Yard | 5577.42782152 yd | 
| Meter | 5100.0 m | 
| Kilometer | 5.1 km | 
| Mijl | 3.1689930804 mi | 
| Zeemijl | 2.7537796976 nmi | 
