| 4000 km * | 0.6213711922 mi | = 2485.48476895 mi | 
| 1 km | 
| Måleenhet | Lengde | 
|---|---|
| Nanometer | 4e+15 nm | 
| Mikrometer | 4e+12 µm | 
| Millimeter | 4000000000.0 mm | 
| Centimeter | 400000000.0 cm | 
| Tomme | 157480314.961 in | 
| Fot | 13123359.5801 ft | 
| Yard | 4374453.19335 yd | 
| Meter | 4000000.0 m | 
| Kilometer | 4000.0 km | 
| Engelsk mil | 2485.48476895 mi | 
| Nautisk mil | 2159.82721382 nmi | 
