| 723 km * | 0.6213711922 mi | = 449.251371988 mi | 
| 1 km | 
| Natuurkundige eenheid | Lengtes | 
|---|---|
| Nanometer | 7.23e+14 nm | 
| Micrometer | 7.23e+11 µm | 
| Millimeter | 723000000.0 mm | 
| Centimeter | 72300000.0 cm | 
| Inch | 28464566.9291 in | 
| Voet | 2372047.24409 ft | 
| Yard | 790682.414698 yd | 
| Meter | 723000.0 m | 
| Kilometer | 723.0 km | 
| Mijl | 449.251371988 mi | 
| Zeemijl | 390.388768899 nmi | 
