| 491 km * | 0.6213711922 mi | = 305.093255388 mi | 
| 1 km | 
| Mõõtühik | Pikkus | 
|---|---|
| nanomeeter | 4.91e+14 nm | 
| Mikromeeter | 4.91e+11 µm | 
| Millimeeter | 491000000.0 mm | 
| Sentimeeter | 49100000.0 cm | 
| Toll | 19330708.6614 in | 
| Jalg | 1610892.38845 ft | 
| Õu | 536964.129484 yd | 
| Meeter | 491000.0 m | 
| Kilomeeter | 491.0 km | 
| Miil | 305.093255388 mi | 
| Meremiil | 265.118790497 nmi | 
