| 638 km * | 0.6213711922 mi | = 396.434820647 mi |
| 1 km |
| Natuurkundige eenheid | Lengtes |
|---|---|
| Nanometer | 6.38e+14 nm |
| Micrometer | 6.38e+11 µm |
| Millimeter | 638000000.0 mm |
| Centimeter | 63800000.0 cm |
| Inch | 25118110.2362 in |
| Voet | 2093175.85302 ft |
| Yard | 697725.284339 yd |
| Meter | 638000.0 m |
| Kilometer | 638.0 km |
| Mijl | 396.434820647 mi |
| Zeemijl | 344.492440605 nmi |
