| 404 km * | 0.6213711922 mi | = 251.033961664 mi | 
| 1 km | 
| Merska enota | Enota dolžine | 
|---|---|
| Nanometer | 4.04e+14 nm | 
| Mikrometer | 4.04e+11 µm | 
| Milimeter | 404000000.0 mm | 
| Centimeter | 40400000.0 cm | 
| Palec | 15905511.811 in | 
| Čevelj | 1325459.31759 ft | 
| Jard | 441819.772528 yd | 
| Meter | 404000.0 m | 
| Kilometer | 404.0 km | 
| Mile | 251.033961664 mi | 
| navtične milje | 218.142548596 nmi | 
