| 18 km * | 0.6213711922 mi | = 11.1846814603 mi | 
| 1 km | 
| Måleenhed | Længde | 
|---|---|
| Nanometer | 1.8e+13 nm | 
| Mikrometer | 18000000000.0 µm | 
| Nillimeter | 18000000.0 mm | 
| Centimeter | 1800000.0 cm | 
| Tomme | 708661.417323 in | 
| Fod | 59055.1181102 ft | 
| Yard | 19685.0393701 yd | 
| Meter | 18000.0 m | 
| Kilometer | 18.0 km | 
| Nil | 11.1846814603 mi | 
| Sømil | 9.7192224622 nmi | 
