| 640 km * | 0.6213711922 mi | = 397.677563032 mi |
| 1 km |
| Mjerna jedinica | Dužina |
|---|---|
| Nanometar | 6.4e+14 nm |
| mikrometar | 6.4e+11 µm |
| Milimetar | 640000000.0 mm |
| Centimetar | 64000000.0 cm |
| Palac | 25196850.3937 in |
| Stopa | 2099737.53281 ft |
| Jard | 699912.510936 yd |
| Metar | 640000.0 m |
| Kilometar | 640.0 km |
| Milja | 397.677563032 mi |
| Nautička milja | 345.572354212 nmi |
