| 503 km * | 0.6213711922 mi | = 312.549709695 mi | 
| 1 km | 
| Natuurkundige eenheid | Lengtes | 
|---|---|
| Nanometer | 5.03e+14 nm | 
| Micrometer | 5.03e+11 µm | 
| Millimeter | 503000000.0 mm | 
| Centimeter | 50300000.0 cm | 
| Inch | 19803149.6063 in | 
| Voet | 1650262.46719 ft | 
| Yard | 550087.489064 yd | 
| Meter | 503000.0 m | 
| Kilometer | 503.0 km | 
| Mijl | 312.549709695 mi | 
| Zeemijl | 271.598272138 nmi | 
